Ultimate Bonk Ride | What Happens When You Cycle 140km Without Eating?

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  • čas přidán 16. 04. 2021
  • Most cyclists will have experienced the dreaded bonk while riding, be it because you forget to eat, or go out for longer than you thought, the feeling of being absolutely empty is universal. So why would you want to go and do that on purpose? Conor decides that he’s willing to do it in the name of GCN science, to find out what happens to your blood glucose levels if you go on a hilly 140km ride with Hank through the Brecon Beacons, without eating. As if that’s not gruelling enough, Hank and Conor compare power data for a series of 5 minute intervals over the course of the ride!
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Komentáře • 1,6K

  • @gcn
    @gcn  Před 3 lety +167

    Have you ever bonked? Tell us your experiences in the comments 👇

    • @jangold4652
      @jangold4652 Před 3 lety +4

      Yikes 1like haha

    • @supernoodles908
      @supernoodles908 Před 3 lety +18

      Worst I've bonked was in a swimming session. I had trained 23ish hours so far that week and the coach gave me an evil mainset. 50x200m and I'd roughly get 5-10 seconds rest between each one. I was basically swimming non stop without food for ages... I just hit a wall. I kept pushing. Kept telling my body to go but it just wasn't having it.
      Probably not the most physically effective training session but great for mental strength

    • @oisinkyne1469
      @oisinkyne1469 Před 3 lety +4

      Proud to say i never have, I never cycle more than 50k but thats not important

    • @hambernat6444
      @hambernat6444 Před 3 lety +2

      When I was started cycling this was my first month of riding more more than 50km per week. I did on MTB 112km before first grocery store & then I have to ride second 112km to my house.

    • @DutchBicycleCam
      @DutchBicycleCam Před 3 lety +5

      yes many times before i watched GCN.

  • @BrownianMotionPicture
    @BrownianMotionPicture Před 3 lety +619

    The worst thing about falling flat like this is getting overtaken by anyone and everyone, just knowing you'll be part of Daves pub story about how he overtook a roadie on his £99 argos pavement bike.

    • @deivytrajan
      @deivytrajan Před 3 lety +6

      Lmaooo

    • @DinnerForkTongue
      @DinnerForkTongue Před 3 lety +13

      If you don't want that to happen, don't bonk. Pretty simple.

    • @KristopherNoronha
      @KristopherNoronha Před 3 lety +28

      I think he still did better than at least 90% of all fully carb'd cyclists out there :D

    • @elizabethr9304
      @elizabethr9304 Před 2 lety +5

      oh man... I've never thought about it like that!

    • @kishascape
      @kishascape Před 2 lety +9

      True but everyone knows people with stories like that are wankers. We joke about them behind their backs.

  • @ap5194
    @ap5194 Před 3 lety +403

    I bonked a few weeks back, could barely turn the crank on the last mile. The worst part was all the horrible thoughts 😂 thought about my whole life over and over and stuff I'd done wrong. Then ate a Mars bar and all was fine 👍🏻

    • @billinhouston3291
      @billinhouston3291 Před 2 lety +12

      Same here. Just the worst possible thoughts in my head.

    • @koolfy
      @koolfy Před rokem +4

      Omg! Me too!

    • @aemiliadelroba4022
      @aemiliadelroba4022 Před rokem +2

      I know the feeling , same thing happened to me … scary 😧 when you can’t even pedal the bike 🚴.

    • @jodiemcclellan5771
      @jodiemcclellan5771 Před rokem +1

      🤣🤣made me laugh this🤣🤣 your spot on aswell

    • @RealityCheckTime
      @RealityCheckTime Před rokem +1

      I wish I could just ate a Mars and be fine when this happens. I'm afraid I'm not!

  • @nicothedj
    @nicothedj Před 3 lety +110

    Conor: "Would not recommend doing this...would not"
    Me realizing that I do this every ride

    • @g.west2372
      @g.west2372 Před 3 lety +8

      did 100km last time and it started to really hurt after 70km... shortcut another hill to get home? no i still got half a fruity-bar so lets go!
      on the last 10km every small hill (beeing fresh you wouldn't even count them as hills) pushed me to the max...

    • @johnnybow7045
      @johnnybow7045 Před 2 lety +2

      I did a 240k ride once. Until 100k I only ate a banana, two snickers bars and an apple. Also I was clever to attempt it on a Sunday with only gas stations open. Still ask myself how I did it in the end

    • @AkshatSTR8EDGE
      @AkshatSTR8EDGE Před 2 lety +3

      @@johnnybow7045 the two snickers bar surely helped alot.

  • @dougarch
    @dougarch Před 3 lety +62

    ‘He’s like a bloody glucose camel’ 😂😂😂 Connor’s new spirit animal?

  • @red00tl
    @red00tl Před 3 lety +523

    Chapeau to Connor for his dedication to science, his willingness to starve while riding 140km, climbing nearly 3,000m, AND drawing blood every so often throughout his ordeal. 😱👍😭

    • @gcn
      @gcn  Před 3 lety +56

      He's dedicated!

    • @user-kb7ij6ye8u
      @user-kb7ij6ye8u Před 3 lety +28

      It’s still rather do that than Hanks 24hour zwift

    • @Arfonfree
      @Arfonfree Před 3 lety +46

      Looked like they were using glucose monitors, not drawing blood.

    • @Ben-yr9jo
      @Ben-yr9jo Před 3 lety +32

      at minute 20:00 you can see the little disk on Hank's upper arm, right around the triceps, that's the Glucose monitor module, it's connected to their phones so you there's no need to draw blood. Even with conventional methods, measuring blood sugar is really just a tiny poke, there isn't any blood lost in the process.

    • @blu0065
      @blu0065 Před 3 lety +1

      @@Ben-yr9jo so it's an abott CGM, probably

  • @bryanthomas3687
    @bryanthomas3687 Před 3 lety +307

    Once bonked hard with 5mi and a good climb between me and home. Swerving and listing, I pulled into a driveway were a man was washing his car. I asked him for a Coke, or a candy bar or something. He went into his house and came out with a handful of random gumdrops and mints that it looked like he dug out of the couch cushions. They got me home 😄

    • @85parrot
      @85parrot Před 3 lety +54

      we have a legendary story in my group of friends - one of them bonked so hard in a fairly isolated area that he ate the unchewed half of a discarded apple off a grass verge! bad times.

    • @15idog
      @15idog Před 3 lety +11

      Yeah man I've stolen half worm eaten apples off a tree but the side of the road just to get home 😂

    • @bryanthomas3687
      @bryanthomas3687 Před 3 lety +15

      I have kept an extra "bonk bar" in my saddle bag ever since.

    • @jamesgoodwin7831
      @jamesgoodwin7831 Před 3 lety +3

      ☝️Thats awesome Bryan! 😂

    • @ukaszzyka6279
      @ukaszzyka6279 Před 3 lety +21

      Not exactly bonking, but I was so thirsty once, while riding during a hot day on the trip to Sweden, that I had to take some water from the local cementary, kept there for watering the plants and cleaning the graves. I was literally stealing water from the dead Swedish ;)

  • @mrpc2621
    @mrpc2621 Před 3 lety +67

    Best quote: "He's like a bloody glucose camel"

  • @mattshipstone9361
    @mattshipstone9361 Před 3 lety +80

    The temptation to kill and eat Hank must have been near overwhelming!

    • @DinnerForkTongue
      @DinnerForkTongue Před 3 lety +1

      Hank is all bone and gristle, not good for food at all!

    • @james-tennis
      @james-tennis Před 3 lety +1

      The camera men and gcn film cars probably would deter you from turning to murder and canabalism in 6 hours 😆

    • @andyhaochizhang
      @andyhaochizhang Před 3 lety +2

      @@james-tennis yes, eating people on camera is not allowed

    • @seahorserider33
      @seahorserider33 Před 2 měsíci

      Hahahaha 🤣

  • @Samuelclark11
    @Samuelclark11 Před 3 lety +353

    *Connor gets cocky with his recent power numbers - GCN writers: “Lets wipe that smile off his face

    • @davidburgess741
      @davidburgess741 Před 3 lety +8

      He admits to coming up with the idea! Alas, he didn't drop!

  • @Jayden-oi8km
    @Jayden-oi8km Před 3 lety +758

    When you're so unfit you ended up bonking by watching this video

    • @richardhaselwood9478
      @richardhaselwood9478 Před 3 lety +1

      I feel that :(

    • @MarkMetEenC
      @MarkMetEenC Před 3 lety +29

      Just to be sure, I'm keeping my glycogen levels up with some pancakes while watching this video

    • @Kimberly_Sparkles
      @Kimberly_Sparkles Před 3 lety +5

      Friend, just lay back down and watch the video. You’ll recover better in a prone position.

    • @sasham6486
      @sasham6486 Před 3 lety +1

      i feel that

    • @davecasey4341
      @davecasey4341 Před 3 lety +2

      I know I was winded watching this while laying on my bed.

  • @evanking920
    @evanking920 Před 3 lety +43

    Back when I did long rides ( The Pleistocene) we carried bananas , packets of maltodextrin and Gatorade in our water bottles. One of my riding buddies bonked and resorted to eating a banana peel to get home.

    • @malharfalke1715
      @malharfalke1715 Před 3 lety +1

      UCI might had caught him if he did that 😂😂😂

    • @DinnerForkTongue
      @DinnerForkTongue Před 3 lety +1

      The fiber may have fooled his stomach for a bit 😁

  • @Arfonfree
    @Arfonfree Před 3 lety +167

    As a diabetic (and antique to boot) I monitor my blood glucose on every ride. My response is far different from Conner's. One data point I missed, though, is what Conner's BG was after he bonked.
    I would emphasize what Hank said about not trying this at home. Depending on your physiology, an effort like that can drop you into very dangerous territory.

    • @TheWickiman
      @TheWickiman Před 3 lety +11

      Yes, never do this as a diabetic. Also have your granola bars, gel and for really long rides Glucagen (emergency kit) with you and someone who knows how to use it. Just in case! Nowadays we are able to check our blood glucose on our phone, but years ago I was not able and depended on my feelings

    • @Jinxie911
      @Jinxie911 Před 3 lety +5

      @@TheWickiman eat 2 hours before the ride and check glucose levels. No emergency glucogen is needed in my case and I'm even a type 1. Check levels during long rides and add bars and gels accordingly. The intake of insulin reaches full effect in about 45 mins. I'm at times a bit jealous at others that don't need plan like we do before we go out on rides like this one :P The ride Hank and Connor do here would basically kill me without proper planning.

    • @d716agq
      @d716agq Před 3 lety

      @Arfonfree @TheWickiman @Julie do you have any idea what hardware they are using to monitor their glucogen levels? Thanks, Will. (I'm guessing that hardware for non diabetics will be cheaper - and less accurate but sufficient for this purpose)

    • @Arfonfree
      @Arfonfree Před 3 lety +3

      @@d716agq Not positive, but the outline of the sensor looked like the the Abbott Freelibre.NB: not measuring glycogen, which is the storage form for glucose. Measuring interstitial glucose, which does differ from blood glucose in complex ways.

    • @TheWickiman
      @TheWickiman Před 3 lety +4

      @@Jinxie911I never have used glucogen yet, but for a 100km ride with over 1,200 m elevation I better have it with me. I lower my basel rate by 80% for the time riding and this normaly works perfect. Maybe after the ride a correction bolus is needed due to the stress for the muscles.

  • @thomasschumann4034
    @thomasschumann4034 Před 3 lety +200

    "If I tried this earlier in my cycling career, I would have bonked way earlier" - Conor
    *Later GCN on the phone with Freddy "Freddy, we've got a new challenge for you, you're going to love it"

    • @ridinghome4988
      @ridinghome4988 Před 3 lety +9

      And Freddy will once again surprise everyone with his fitness

  • @Arthur-mh2uo
    @Arthur-mh2uo Před 3 lety +241

    Conor had really earned my respect by doing this as riding that far without food must have left him dead

    • @jamesgoodwin7831
      @jamesgoodwin7831 Před 3 lety

      Totally agree, Arthur. The man is all Heart! What a Legend. Truly inspiring

  • @franklehmann426
    @franklehmann426 Před 3 lety +43

    Well done Connor! Nice to see Hanks change of behavior from teasing when Connor was feeling well to supporting when he was really suffering.

  • @felixsvensson5265
    @felixsvensson5265 Před 3 lety +84

    I was on a trip in Spain and super naive. I assumed there would be restaurants on the way and I was hugely overestimating how long I was able to travel in a day. I had learned from TV how capable the body is and how long it can last without food. What I didnt understand is how incredibly shitty and weak it makes you feel.

    • @kingofcrunk4237
      @kingofcrunk4237 Před 3 lety +20

      I bonked to the point where I was sitting in a parking lot, indian style, ... technically ... but drooped all the way over forward. No muscle was holding me up. I could tell that people were staring at me on occasion - based on sounds I heard, but I couldn't even acknowledge them. It was everything I could do, minutes later (maybe 8 or ten minutes?) to unwrap a energy bar and attempt to bite at it little piece by little piece.
      Similarly, I was once biking with a really fit, clean and proper blonde gal who was getting into cycling. She bonked so badly that she got off of the bike, and promptly sat into a mud puddle (plenty of dry areas around her). I wasn't sure what was going on until she ended up in the puddle - then I pretty much knew it was a blood sugar thing.

    • @ColinBroderickMaths
      @ColinBroderickMaths Před rokem

      @@kingofcrunk4237 Haha, I was really weirded out by you referring to her as "clean" until you mentioned the mud puddle.

  • @bashbarnard
    @bashbarnard Před 3 lety +441

    I'm genuinely surprised they didn't try to kill off Hank again with this challenge 😂

  • @elijahlimbaga661
    @elijahlimbaga661 Před 3 lety +161

    Connor: my power is a bit down, 440 watts 🤔
    COMPETITIVE Hank: 😑😑😑

  • @RoelCuylaerts
    @RoelCuylaerts Před 3 lety +83

    Being a diabetic I was really interested in the glucose numbers when he bonked. Since you used them throughout the entire film it is a really shame you didn't at that point. The numbers didn't show? I think he didn't really bonk at all. 🤪

    • @3dflyer87
      @3dflyer87 Před 3 lety +10

      I'm also a diabetic and thought the same thing!!
      Nobody bonks like a diabetic bonks

    • @dianal.1279
      @dianal.1279 Před 2 lety

      Yeah, I think they didn't show, because it was high.

    • @muhammedtolgay1912
      @muhammedtolgay1912 Před 2 lety

      I bonk smoetimes with 45mg 👽

    • @grumpynerd
      @grumpynerd Před 2 lety +11

      I've done my blood sugar a few minutes after returning from a bonk ride and it was actually very high. Bonking is when your brain floods your body with cortisol to scavenge glucose precursors from anywhere it can, like muscle tissue. This is why habitual long aerobic exercise without eating leads to wasting in the muscles you don't use. Conor being a pro racer is necessarily a bit of a metabolic freak; he probably has much higher glycogen stores than a casual cyclist; his metabolic pathways feeding gluconeogenesis are likely more efficient too. This would make him extremely bonk-resistant; even a brief stop would allow his glucose levels to recover almost immediately. They may not have shown his glucose levels because they looked normal, which would send the wrong message to more casual cyclists.
      Since there is no medical definition of "bonk", you can't say he didn't do it, but I don't think he achieved a recreational cyclist's bonk -- he was still producing over 300 watts. This was more like tickling the dragon's tail. The last time I bonked I could barely propel the bike forward on level ground, although in part that's the metformin which makes bonk onset sudden and fierce. After that I bought a flip-top handlebar bag which I keep stocked with food.

    • @TheDiablosix6six
      @TheDiablosix6six Před 2 lety +1

      I say his sugar level wasn't as low as he thought due to his fat stores being turned into glucose. I'd say he was more tired from the 140km cycle and when ur body turns fat to sugar it burns a lot of calories doing so. Calories his body could ill afford to waste considering the challenge he did!!

  • @Shomi_brat
    @Shomi_brat Před 3 lety +13

    I always had the worst bonks when I was riding alone.If Mr. Connor was riding alone,I think that the dreaded bonk would catch him much sooner.Being alone,hungry and completely tapped out of energy is pretty devastating to the mind.Great video guys,again.

    • @danielrose6418
      @danielrose6418 Před rokem +1

      i totally agree, having company really does make for a more cheerful ride

  • @eliteharrington7377
    @eliteharrington7377 Před 3 lety +82

    12:29 Mother Earth thanks you for tucking the wrapper into your pocket, instead of tossing it at the side of the road 🌍

    • @holdencaulfied7492
      @holdencaulfied7492 Před 3 lety

      Thanks hippie

    • @grahamballard7041
      @grahamballard7041 Před 3 lety +4

      What I usually do is roll up the gel or bar wrapper and slip it under the edge of my shorts, that way you don’t accidentally pull out an empty wrapper and drop it in the road without realizing it!

    • @DinnerForkTongue
      @DinnerForkTongue Před 3 lety +7

      @@holdencaulfied7492
      Get bent.

    • @vyr1316
      @vyr1316 Před 3 lety +6

      @@holdencaulfied7492 Get bent.

    • @mathieu9442
      @mathieu9442 Před 3 lety +6

      @@holdencaulfied7492 Get bent.

  • @KaijuAlert
    @KaijuAlert Před 3 lety +36

    Conor is an absolute machine, I think being ex pro, knowing what it is like to really go to the well and find nothing there in a way us keen amateurs could never envision, must give him a really strong mindset for these challenges. I know I couldn't stay as positive as Conor if I did the same ride without food.

    • @4nz-nl
      @4nz-nl Před 3 lety +3

      I think I would have probably kicked the cameraman or something. I can keep riding but my mood really turns terrible if I bonk. Which is why I always carry a Snickers or two ;-)

  • @cdofm
    @cdofm Před 3 lety +55

    This ride really shows how tough Conner is. I don't think I could have made it through half that ride without eating

    • @TimpBizkit
      @TimpBizkit Před 2 lety +2

      I usually get to around 40-50 miles without anything but water and maybe a bit of salt and then the power saps. I feel like Iron Man running on emergency back up power.

    • @ColinBroderickMaths
      @ColinBroderickMaths Před rokem +1

      I've done one and only one century ride and was eating as much as I could physically take. Still limping and dead on the last ten miles.

  • @armella.adventure
    @armella.adventure Před 11 měsíci +5

    At my very first ultracycling race. It was 400 km unsupported and I drove almost all the way, but when I had like 10 tp 15 km left, my tanks was empty. I couldn`t sit on the bike or pedal, I was totally done, so lay down in the ditch and called for help. I learned the hard way, how important food is and the right food.

  • @davegee124
    @davegee124 Před 3 lety +41

    i did a an 75ish mile ride on road on my mountain bike about 20 years ago when i didnt know any better about eating,the last 5 miles home i was crawling and the last mile i gave up i couldnt even stand up when i got off the bike,i hadnt taken any food and only 1 bottle of water..lesson learned.

    • @FlatSpinMan
      @FlatSpinMan Před 3 lety +2

      That would do it all right.

    • @dalailambda9420
      @dalailambda9420 Před 3 lety +5

      Same.... I did a 93 miler on my old 26er mountain bike, no food, 1.5 litres of water, 1500m of climbing, on a hot day.... To this day I cannot believe I made it, I've never felt that bad before or since...

    • @ap5194
      @ap5194 Před 3 lety

      Sounds disgusting that does

    • @jack002tuber
      @jack002tuber Před 3 lety +1

      Been there done that

    • @roopehaimila4353
      @roopehaimila4353 Před 3 lety +1

      Did the same experiment. Planned a short ride but it felt so great that I kept riding.. That was a lesson learned 😅

  • @herculesrockefeller8969
    @herculesrockefeller8969 Před 3 lety +14

    I've bonked a few times, it's not pleasant, and can be dangerous, especially if you are dealing with traffic. Almost everything is affected, your vision, power, and judgement, which can be a terrible combination in the wrong circumstance! Now I take measures so it won't happen again.

  • @fionahunt8530
    @fionahunt8530 Před 3 lety +50

    As a Type 1 diabetic, I 'bonk' on pretty much every ride - It's not just about eating the carbs but balancing that with the right amount of insulin which I have to do manually as my body no longer produces insulin. On the rare occasion when I get the levels somewhere near normal the riding is so much easier. But mostly it's a struggle as every day and every ride is different. There's no formula to follow unfortunately.

    • @4nz-nl
      @4nz-nl Před 3 lety +1

      I've seen people with automatic insulin pumps around their waist, don't those also measure automatically? And is it possible to use one of those while riding?

    • @fionahunt8530
      @fionahunt8530 Před 3 lety +4

      @@4nz-nl I wear an insulin pump but it only delivers insulin like most do. The higher tech ones can suspend insulin delivery in response to readings from a CGM (continuous glucose montior) which is also worn inserted in the stomach but nothing works as well as a properly functioning pancreas I'm afraid.

    • @4nz-nl
      @4nz-nl Před 3 lety +3

      @@fionahunt8530 Thanks for all that info! Interesting, but yes, I'm happy I have a well functioning pancreas because it sounds like hell what you're going through..

    • @lennartgretenkord6071
      @lennartgretenkord6071 Před 3 lety +6

      You know of Team Novo Nordisk? A professional cycling team comprising only of riders who also have type 1 diabetes :) Best of luck to you and keep on riding!

    • @fionahunt8530
      @fionahunt8530 Před 3 lety +1

      @@lennartgretenkord6071 thanks, I certainly will do.

  • @danielbrown6152
    @danielbrown6152 Před 3 lety +17

    Hat’s off to Connor for not snapping at Hank. He had every right to become “Hank-gry” with all that needling. This was another excellent episode that delved into the science of sport performance. Bravo!

    • @cornishcat11
      @cornishcat11 Před 3 lety +1

      oh come on Hank-gry has to be the best comment on here well done

    • @KristopherNoronha
      @KristopherNoronha Před 3 lety

      maybe he did, and they edited it out... but then again, Conor seems a thorough gentleman :D

  • @jenniferw6081
    @jenniferw6081 Před 3 lety +55

    I was forced to search the freezer for leftover hot cross buns to eat while watching Connor suffer. Amazing.

  • @matthewallen1709
    @matthewallen1709 Před 3 lety +95

    As a yardstick this needs to be tried a second time with Connor fuelled and James on water to find out if physiology plays a part. Connor mentioned his professional experience may have helped him so get Freddie out as a comparison as well.

    • @FlatSpinMan
      @FlatSpinMan Před 3 lety +25

      I can just imagine Freddie’s response to reading this.

    • @thegrimpeur
      @thegrimpeur Před 3 lety +27

      Yes, the only reasonable way to get the answers we need is to try and bonk every GCN presenter and compare!

    • @medleyshift1325
      @medleyshift1325 Před 3 lety +1

      I'm pretty armature and I bonk after about 80k with medium climbing. Still road another 30km home after the big climb that broke me though. Tbf no where near Connor's watts I'm sure, but you'd probably surprise yourself with how far you can go.

    • @HughCStevenson1
      @HughCStevenson1 Před 3 lety

      No breakfast, that will kill anyone!

  • @joshgriffiths8201
    @joshgriffiths8201 Před 3 lety +65

    Should do this again, but with Manon fuelling correctly taking Hank on a tour of her favourite cafes but he can only drink water!

    • @testme2131
      @testme2131 Před 3 lety +3

      ...then let's see if she fist-bumps him at the end

  • @ValentinSerbanut
    @ValentinSerbanut Před 2 lety +26

    I would have loved to see the full blood glucose graph relative to the distance progress. Also you should have tested Conor for ketones after the race. It would have been very interesting to see if he actually burned protein (his own muscular tissue) once his glycogen ran out.

    • @ttb1513
      @ttb1513 Před 9 měsíci

      I looked up ketones. I read that when your body burns fat, ketones are produced in your blood and urine. Burning protein and breaking down muscle tissue is certainly interesting. How does burning protein affect ketone levels? I didn’t stumble across anything concerning protein, just fat, as it relates to ketone levels. Thanks.
      Agree that complete graphs over the 140km would be interesting.

    • @masoncox6036
      @masoncox6036 Před 7 měsíci

      ​@@ttb1513ketones are evidence of muscle proteins being broken down. You wouldn't find them in your urine without breaking down muscle

  • @sparx151
    @sparx151 Před 3 lety +12

    My worst bonk was when I was about 90k deep into a 120k spin. Got dropped my the group, stopped at a petrol station got a 3 for 2 deal on yorkie bars. Ate them all but I was so deep in glycogen debt it didn't help so I called for a lift.
    The brain fog set in as a i descended into the nearest village for collection... Then rode into a gate trying to find the car 😅

  • @DaveIsTheBestMan
    @DaveIsTheBestMan Před 3 lety +36

    Its all about the pace you go at. I've done 250km without any food. You will eventually get down to zone 1 and ride really slow. But you can still ride, just feel your body and go at the pace it wants to go at.

    • @karlmathew1342
      @karlmathew1342 Před 3 lety +5

      In my case I find coffee helps.

    • @DinnerForkTongue
      @DinnerForkTongue Před 3 lety +5

      Pretty much, yea. Don't try to force a rhythm if you got a glycogen deficiency, let your body dictate the pace. After all, bonking is being unable to go any harder.

  • @gilgermesch
    @gilgermesch Před 3 lety +26

    Connor: "We've been dropped out here..."
    Ollie: *profuse sweating*

  • @sanpanuk
    @sanpanuk Před 3 lety +1

    So the tallest and thinnest GCN presenter goes without food on a 140k ride! Thought he would have bonked for sure. Should have called Freddie to go without food, as that would be more realistic and applicable to us the non pro cyclists. Anyway, amazing effort Conner. I bonked on my first 100me ride. I cycled about 60 miles and just made it to Marlborough.After scoffing two Cornish pasties, a slice of cake and a coffee, I managed to get back home. Now I always make sure I fuel correctly.

  • @darrenst441
    @darrenst441 Před 3 lety +19

    Bonking on the bike really is the most terrible feeling.
    All credit to Connor for his efforts, both physical and mental. 👏👏

  • @davidheathfield5040
    @davidheathfield5040 Před 3 lety +19

    I don’t know what’s worse, riding all that way with no food or riding all that way with a hyperactive Hank

  • @angelag5708
    @angelag5708 Před 3 lety +31

    The height difference makes it look like we are shooting Lord of The Rings

  • @mikebutcher2968
    @mikebutcher2968 Před 3 lety +14

    As a type 1 diabetic, I've miscalculated my carb to insulin ratio on rides a few times, never nice having to stop a ride to eat fast acting carbs to get your levels back up, but on the other hand, never nice to check and realise your levels are 3 times higher than they should be. My glucose graph sometimes looks like a stage profile of a TDF mountain stage, even after years of cycling, I still struggle to get the correct balance sometimes. Would be interesting to see GCN do a video with the Novo Nordisk team about how they monitor and manage their levels during races

    • @liammarcelventer1880
      @liammarcelventer1880 Před 3 lety +1

      You should seriously consider/ research the Keto diet unless you are a Cat 1 racing athlete.

    • @mikebutcher2968
      @mikebutcher2968 Před 3 lety +3

      @@liammarcelventer1880 Diabetes affects everyone in different ways and I know keto works for some but unfortunately not for me. I tried keto a couple of years ago, but when going out for a ride for more than 45 minutes I'd go into hypo. I still eat some keto meals when not riding/exercising but unfortunately keto and exercise aren't a good mix for me

    • @fionahunt8530
      @fionahunt8530 Před 3 lety +4

      A video with Novo Nordisk would be super interesting. I'm Type 1 too and my BG profile is also like a TDF mountain stage. So difficult. Non T1s just do not understand it.

  • @CedarScott
    @CedarScott Před rokem +32

    I have watched this video a couple of times. I am curious how Connor's recovery day(s) felt. Especially at my age, if I go deep into my reserves, it really takes time to come back to anywhere close to performance pace.

    • @duaner3817
      @duaner3817 Před rokem

      Yeh me too. VERY intrigued to see what recovery looked like. Hours /days...?

  • @inbearbeitung7481
    @inbearbeitung7481 Před 3 lety +15

    I'd love to see a video behind the scenes, seeing the motorcycle, preperation for the videos and so on

  • @kleberguedes
    @kleberguedes Před 3 lety +6

    Being type 1 diabetic, I "bonk" every time I don't have the right amount of insulin or fuel. I recognise Connor's face, feeling and lack of power.
    These sensors are key to keep me going, you look your watts, I look my sugar levels.

  • @RiverCat999
    @RiverCat999 Před 3 lety

    Great video, guys Thanks for all the hard work you put into the ride and these videos. Thanks again.

  • @007-Bond
    @007-Bond Před 3 lety +24

    A bar every 15-20 mins!?! Might as well bring my entire fucking fridge then eh?

    • @peterindaco96
      @peterindaco96 Před 3 lety +2

      Makes cycling as expensive as needing petrol.

    • @james-tennis
      @james-tennis Před 3 lety +5

      I wonder if they just mean biting a bar during that time period. Not necessarily eating the entire bar because you'd actually gain weight on your 160km ride lol

    • @navbravic1355
      @navbravic1355 Před 3 lety +2

      @@james-tennis I mean he said he wanted 60-90g of carbs per hour. I'm looking at a granola bar right now and it's 18g of carbs. So you'd need 3.3 - 5 bars per hour, which is 1 full bar every 12-18 minutes.

    • @pentachronic
      @pentachronic Před 3 lety

      ​@@navbravic1355 A granola bar is about 150 calories. For an hour of exertion say, as a fit person, you burn ~750 calories/hr, that means you need about 6 bars per hour (ie one every 10 minutes). So the calculation seems correct.

    • @pentachronic
      @pentachronic Před 3 lety

      This assumes you aren't eating anything else (like a big breakfast or lunch etc). This will keep you on the level for glycogen stores.

  • @UbzUnclemax
    @UbzUnclemax Před 3 lety +80

    I once bonked so badly that I was frightened to pass out.
    My heart rate couldn't exceed 90 BPM anymore and my speed dropped to 10 km/h (all on flat, windless conditions)

    • @supernoodles908
      @supernoodles908 Před 3 lety +16

      Dam that's a hard core bonk. Lesson learned

    • @gcn
      @gcn  Před 3 lety +36

      That's a proper bonk!

    • @taqiya.b5228
      @taqiya.b5228 Před 3 lety +17

      Same here. New to road cycling but went on an 80k with two cereal bars and a banana thinking it was enough. Luckily it was just before the descent home

    • @OFFSHOREDOUG
      @OFFSHOREDOUG Před 3 lety +5

      Been there, o2 was at 89%. Slept then carried in.🙈

    • @easony_snaps
      @easony_snaps Před 3 lety +3

      just realise that i need to refuel this often, once went to a 160km ride with a few power gel and nothing else. I guess it ended surprisingly well tho after seeing this video.

  • @SFSomega
    @SFSomega Před 16 hodinami

    Conor is an absolute beast!
    I have bonked really hard, but not during cycling but during hiking actually. I was literally walking in slow motion until I reached a shop where I ate 2 Snickers and drank 2 Colas. Then I felt life coming into my body instantly and I was able to walk the last 200m to the car.

  • @justinbrown6558
    @justinbrown6558 Před 3 lety +1

    Fantastic effort Connor! What a ride!! Interesting, and extremely useful information, but...I felt for Connor!!

  • @richycoles
    @richycoles Před 3 lety +6

    Nice to see some of the roads I ride in South Wales on a GCN video. Made them look good too!

  • @sumljivc
    @sumljivc Před 3 lety +11

    When I saw the title and Hank in the thumbnail, I was 100% certain he was going to be the one suffering. Well, well how the turntables ...

  • @ChromeStrand
    @ChromeStrand Před 3 lety

    Such a brilliant contents nowadays you guys are making. Love it

  • @danpink3852
    @danpink3852 Před 3 lety

    Fantastic effort, really interesting video and explains a lot!
    I didn’t take any food with me on my first 100km and really suffered because of it. This video really demonstrates the importance of eating!!

  • @reactivatedforever
    @reactivatedforever Před 3 lety +11

    Great episode! Greatly enjoyed Connors honesty and the blood glucose readings. Would be interesting to hear a follow up to how well Connor recovered and if his power was still affected. Would be also interesting to have hormones assessed too to help discourage athletes from disordered fuelling.

  • @colinfrei7136
    @colinfrei7136 Před 3 lety +3

    I know the feeling of Bonken. My first ride after a big injury and my longest and highest ride ever. Over 1000 metres of climbing and about 30 kilometres. we actually only wanted to ride 5 kilometres and therefore didn't have anything to drink or eat. This ride also had a lot of Hike a Bike in it. At the end, we arrived at over 2000 metres above sea level and got cheese and meat at an alpine pasture. Since there were almost no fountains on the ride, we almost felt like we were dying of thirst. In the end, we swore we'd never do that again. But at the end of 2020 we asked ourselves what the best experience was and we both said it was this trip. That's why we're already planning it again, but this time with food and water.
    Colin, 14 years old, Switzerland, Grisons

  • @lukemanley8937
    @lukemanley8937 Před 2 lety

    Great job both of you. It's all in education and fun, but still hard to watch Conor suffering. We've all been there and it's just so overwhelming.

  • @ErrybodyGetTypsy
    @ErrybodyGetTypsy Před rokem +2

    Great duo! Looked like at least one of you had fun haha Loved watching this little experiment. Not that I needed another reason to always pack a couple extra cliff bars every ride

  • @jonathanstow4820
    @jonathanstow4820 Před 3 lety +18

    Stupendous effort from the big man.

  • @epicme2000
    @epicme2000 Před 3 lety +5

    Bonked once riding a 20km mostly flat stretch for the 1st time few weeks after learning to ride a bike @ age 40, beliving I can ride and go anywhere like those dudes I see riding fast and looking cool. No food or water with me. Well, I had it very bad. Even pushing the bike half way home was like an uphill task. Lesson learnt. I never head out with more than enough fuel to last twice the distance I am going even on short rides.

  • @hadesmcc
    @hadesmcc Před 3 lety

    That was a truly valiant effort Connor. Congrats, well done.

  • @andrifsig
    @andrifsig Před 3 lety +23

    This turned dark there for a moment:
    Hank "you are on deaths door there my friend"
    proceeds to laugh maniacally!
    I do a bit of cycle touring. On my first tour, the second day of the tour, I had to cycle over two mountain passes, On an overloaded bike. The last 5km of the ride took me over an hour. I got to a restaurant next to my campsite. Ordered the sloppiest meal on the menu. Took me abut 90 minutes to set up my small camp.
    Did stick with cycling and cycle touring though. Started weighing in at 162kg, now down to 109kg so pretty happy with my choices.

    • @ygtcbee23
      @ygtcbee23 Před 3 lety

      Hank experienced a clip in Mechanical. Like Matt Stevens

    • @andrifsig
      @andrifsig Před 3 lety

      @@ygtcbee23 well that doesn't really suit my narrative! ;)

    • @ygtcbee23
      @ygtcbee23 Před 3 lety +1

      @@andrifsig watch the clip and listen to him trying to clip in and miss. It's hilarious. Instant Karma

  • @markush7001
    @markush7001 Před 3 lety +24

    My worst bonk left me 2 miles from home pondering whether or not to call a ride.

  • @rickgoodwin6765
    @rickgoodwin6765 Před 3 lety +1

    First off. That looked like an amazing ride. Some very beautiful area there. Conner did amazing. I never thought that he would have made that whole ride. Shows what I know. This has been some very good investigative journalism. A great experiment. I feel for him because it probably took him several hours to recover. Thank you both. Great job.

  • @iancraig2507
    @iancraig2507 Před 3 lety

    So much appreciate what you guys and gals do for science. I am 67 and try for a 3 to 4 hr ride a few times a week and I am learning so much from you.

  • @albertharyanto2544
    @albertharyanto2544 Před 3 lety +3

    Me bonk experience made a taxi driver scared. Imagine you’re resting in your cab at 3am and suddenly someone pounding at you losing out of breath asking for help

  • @supernoodles908
    @supernoodles908 Před 3 lety +6

    A glucose and power plotted on a graph would be great to see the relation between power to glucose in the blood

    • @supernoodles908
      @supernoodles908 Před 3 lety

      @@CarpeDiem13x Indeed. It would be interesting to see a large data set

  • @richaw2779
    @richaw2779 Před 3 lety

    Great job Conor.. massive effort.. must have been tough having Hank taunting you the whole way.. your a really nice bloke though.. that always shines through.. thanks both of ya! 👍🏻🚴🚴

  • @leeblanchard6434
    @leeblanchard6434 Před 3 lety +2

    Great video guys👍, I've just starting cycling and experienced this in my first two rides, both within 25k. Very difficult when my fitness levels are so low. I will push through and really appreciate all your help via your videos. Thank You

  • @GreatJoey91
    @GreatJoey91 Před 3 lety +5

    "I've got nobody else to blame but myself, because this way my idea." Conor 'the glucose camel' Dunne, you absolute legend. I can't believe you made it so far without food 😳

  • @tomlawless4406
    @tomlawless4406 Před 3 lety +4

    That was the bonk of the year hah, seriously well done for getting to the end.

  • @jamesbull9879
    @jamesbull9879 Před 3 lety

    Amazing video. Your last comment about years of experience are so true. I hit the wall so much quicker, probably after 3 hours and then I’m done, power goes, focus goes and ability goes.
    Top effort!!

  • @JaySmith-nn1bg
    @JaySmith-nn1bg Před 3 lety

    I never comment on CZcams, but I must say something here... WELL DONE MATE!!!! So VERY Well Done!!! It's when we are challenged with our own perceived limits, that we find we rocket past them in ways we never thought possible. Cheers.

  • @0connell07
    @0connell07 Před 3 lety +15

    Conor is big enough to store energy for weeks 🤣

    • @MJarthur95
      @MJarthur95 Před 3 lety

      The man’s a giant tanker compared to hank

  • @richardbecton6879
    @richardbecton6879 Před 3 lety +4

    Hank’s laugh @ 10:45, I thought Matt was making a return for a second.

  • @Lsu4878
    @Lsu4878 Před 3 lety

    I have never bonked but I have the experience of knowing its time to refuel...sometimes sooner than I thought. This was a great discussion/illustration..thanks guys!

  • @seryozhasteve
    @seryozhasteve Před 4 měsíci

    Great vid - I learn so much from these posts, and what to look out for on my own bike. Best figure of 8 tape wrap I’ve seen, still confuses the hell out of me though.

  • @fredrikzander4877
    @fredrikzander4877 Před 3 lety +10

    The legend says that later that day, Conor changed his name to sir eatsalot.

  • @tjlazr
    @tjlazr Před 3 lety +4

    I’m pretty new to cycling and built up to a 60 k ride which, naturally, I took no more fuel than a water bottle for. To be honest performance was pretty consistent until last 10k and I felt terrible the rest of the day. I am certainly going to fuel better next time but full credit to Conor, no idea how he did that!!

    • @user-lf5vv8tn1d
      @user-lf5vv8tn1d Před 2 lety

      That "feel bad the rest of the day" problem is what drives me really nuts. Recovery after a hard bonk sucks bad enough that it is good motivation to be careful.

    • @michaelberger6699
      @michaelberger6699 Před 2 lety

      Drinking a lot will help you feel better sooner. You liver is doing a lot to clean up metabolic trash!

  • @denismann9673
    @denismann9673 Před rokem

    Awesome Hank, big thanks from Australia

  • @larisonjohnson
    @larisonjohnson Před 3 lety

    Conor, that is amazing! I can usually manage about 50k without food. Discovered once accidentally and then repeated the accident the following year. I don’t think there is a worse feeling than the bonk at 10k to go, knowing you just have to limp home. My cliff seems a bit steeper than yours. Feeling every square...I’m suffering just watching you.😅 would love to hear what your whoop said in the days after. Chapeau mate! Well done.

  • @donsolomon8501
    @donsolomon8501 Před 3 lety +3

    Its pretty epic how the clarity of his conversation changed after his 1st effort. Hank was still Hank.

  • @headlyredbear9128
    @headlyredbear9128 Před 3 lety +3

    I once carried on for ten miles after bonking hard, threw the towel in just outside Keynsham as i was going a bit blind and unable to ride in a straight line, if i had'nt had a phone on me i'd have probably spent the night there.
    Never again.

  • @carlgarcia8091
    @carlgarcia8091 Před 3 lety +1

    So much respect for this guy. Thank you for teaching us something important today. 140km without fuelling! Damn...

  • @maribee5423
    @maribee5423 Před rokem

    That was great!! Conor is amazing! I want to do a 475km tour in the Brecons next year after a long break after having kids. I have bookmarked this and will keep it as inspiration for getting fit enough. And if I can eat like Hank, then double whammy!

  • @Gcman0274
    @Gcman0274 Před 3 lety +18

    That's a small fortune of gels/bars Hank was stuffing in his pockets. Would be interesting for Connor to do this against someone who has the metabolic flexibility who regularly depends on fat as fuel and doesn't purely rely on carbs.

    • @ForwardLooking832
      @ForwardLooking832 Před 3 lety +3

      Yes. I like to see this repeated with someone who is very well fat adapted / keto type of rider who can switch between ketone and carbs as required. I wonder if there are any professional riders who have that flexibility. Seems to me I think they are all mostly carb-based.

    • @jasonmcgrody9472
      @jasonmcgrody9472 Před 3 lety +8

      @@ForwardLooking832 It's unlikely their power numbers, especially the 5-minute efforts, would have been that high in the first place. No pro rider does this because it's not a way to actually win anything.

    • @desertrainfrog1691
      @desertrainfrog1691 Před 3 lety +5

      @@ForwardLooking832 There isn't. Keto is only done for weight loss, not performance. You're not winning anything riding around in ketosis.

    • @andyhaochizhang
      @andyhaochizhang Před 3 lety +2

      @@ForwardLooking832 probably not. It’s like one GTN video pointed out, being more fat adapted potentially limits efficiency with carbs, which is critical at high intensity. So competitive endurance athletes can probably not afford to be too fat adapted.

    • @HkFinn83
      @HkFinn83 Před 3 lety +1

      @@desertrainfrog1691 yeh maybe not full Keto, but a lot of endurance athletes ‘train low, race high’ with sugar. They would have a much better ability to manage I’d imagine.

  • @malharfalke1715
    @malharfalke1715 Před 3 lety +18

    12:35, poor Connor being persuaded by hank enjoying his treats

  • @dominicward3523
    @dominicward3523 Před 3 lety

    Impressive Connor. Great episode. Thanks guys

  • @ironorrii
    @ironorrii Před rokem

    Conor, Way to go. Pure determination and commitment to the challenge.

  • @amarmangaonkar7682
    @amarmangaonkar7682 Před 3 lety +3

    true glucose to the body is mates along the rides.

  • @Alniemi
    @Alniemi Před 3 lety +9

    I was 77 miles from home and could not find a good camp spot. I HAD TO CALL MY MOM D: it was a learning experience XD

    • @mechy2k2000
      @mechy2k2000 Před 3 lety

      @@MJAP123 I always carry my wallet or at least some cash to buy some food from a gas station, but not always an option

  • @sullysullster8217
    @sullysullster8217 Před 3 lety +2

    Great segment. I tried the opposite a few years ago. I tried 60 miles with no endurance/ base mileage. I took all the powerbars and ate and drank as much as I wanted. The results were similar. No matter how much nutirition I took on, my body wasnt used to the mileage and had the same bonk feeling. A horchata from a mexican restaurant on the way back was a good choice to help me with hydration and carbs on the home stretch. On another note the production of this video was cool especially the dark dub music at around 17:00 with the crow echoing wasnt lost on me. Nice touch.

  • @TheVolksbar
    @TheVolksbar Před 3 lety

    Well done guys, really enjoyed the VDO.

  • @rugbier666
    @rugbier666 Před 3 lety +5

    I actually really want to see the reversed as well. Conor stuffing his face and Hank anything but his hyper self😂

  • @malharfalke1715
    @malharfalke1715 Před 3 lety +9

    I never super bonked, but had a serious one with my friends on a 95km ride when we had just a couple of energy gels and a milkshake in the morning just as hank had porridge

    • @Rainaman-
      @Rainaman- Před 3 lety

      95k seems short. Was it with lots of climbs?

    • @ericlange1524
      @ericlange1524 Před 3 lety

      I am a frequent smoker and to me the 100km mark is the magic mark haha

    • @malharfalke1715
      @malharfalke1715 Před 3 lety +4

      @@Rainaman- not a lot, but few 3-5 percent gradient, also, I only ate 2 gels during the whole ride, and it was during October heat in india, temperatures are pretty high and it was worse
      Also, I was like 14 at that tim

  • @tahirsaid6993
    @tahirsaid6993 Před 3 lety

    Amazing effort. I have done this accidentally when we went out for a 120km ride but in scorching heat and everywhere we stopped hoping to eat something was closed. Never bonked so hard. I could smell ammonia for hours after!

  • @hagartjg
    @hagartjg Před 2 lety +1

    very very informative thanks guys !!! stunning scenery you guys are lucky . Thanks for great channel

    • @gcn
      @gcn  Před 2 lety

      Glad you found it helpful!

  • @robinseeberg3715
    @robinseeberg3715 Před 3 lety +16

    Five, four, three-two, one 9:20
    Wish i could count my intervals like that😂

  • @JohnLemieux
    @JohnLemieux Před rokem +7

    I did 42.7 miles yesterday on my fixie with no food averaged 17.2 mph including stops and by the end I definitely was feeling at my limit. Can’t imagine doing twice as far

  • @JSC131
    @JSC131 Před 3 lety

    Awesome Connor I know those roads well bloody tough route take my hat off to you phenomena effort!!!!!.

  • @alexcarter1127
    @alexcarter1127 Před 3 lety

    that was one of the best videos - chapeau Connor