What's It Like Riding Double Disc Wheels?
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- čas přidán 6. 08. 2024
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I put wheel discs on my cannondale racer in the 90s ,found a big hill to go down and got to 30 miles an hour a bit of a windy day and couldn't turn the handlebars and ended up in a hedge
😁😁😁
I have a peak speed 33mph according to Strava on my 1999 Diamondback Apex about a month ago going down Lookout Mountain here in Colorado. I have to say, after hitting corners like that on two wheels going those speeds I'm absolutely hooked on the idea of getting a motorcycle lol
When was 30 mph fast on a bike?
@@okantichrist I clocked 65 kmh on my mountain bike before crashing, I never felt so much adrenaline
@@FranzFridl Bud I literally go 70km/h down a hill on my way to work 5 days a week, gotta climb it too tho lol
Its super easy to handle with the right bike, you got a narrow handlebar? Because that makes your bike twitchy.
Only thing I fear is my wheel slipping on wet days since its motorcycle speeds without motorcycle gear
I did exactly this almost 30 years ago. Put a disk cover on the front. and a normal disk at back. I tested it for laughs at the Kuala Lumpur outdoor velodrome ( venue of the 1998 Commonwealth Games. ) The lateral movement was really scary.
question i use a 4 spoke front and a disc at the back what would happen if i do double discs lol i got a rear carbon and covers at the front aswell for street riding
Never competitive on bicycles, but just daily-driving motorcycle I've seen what wind does to a motorcycle with solid rims. "Disc" wheeled Harleys were a popular aesthetic choice for a while, but when slammed into by Santa Ana Winds it would force them across the road tires screaming as they tried to fight the wind with out suddenly falling over when the gust ended. Even with "normal" rims the wind would shove me across the lane when the gusts hit. Quite the pucker moment.
I think the cross-sectional area on those bicycles is much more - I don't imagine anyone riding a dual disc bicycle would stay upright in Santa Ana winds even in neighborhoods.
@@KenWestonI also think a motorcycle is inherently more stable than a road bike, so that makes it even scarier
The UCI says they're unsafe...."it's ok, we're not racing"....yeah, I think you missed the bit about them being unsafe 🤔😆
Unsafe is fun like breakless fix gear
@@angelicafernandez9831 unsafe is fun until it isn't lmao
@@angelicafernandez9831 Real* fixies have hand break.
@@r3mpuh nop
@@jpsalis that doesn’t mean it WASNT fun up until. ..
I'm pretty sure if you added in the tyres from yesterday, the crosswind problem would be sorted.
this is the kind of thinking that progresses humanity
@@Cade_Media Ever the engineer.
Francis doing his best Geraint Thomas impression with the aero setup and an open gilet flapping in the wind
Too soon 😂
Has double disc aero wheels then has jacket flapping about in the wind 🥸
and holds a camera with a microphone sticking out of it :D
double disc for aero gains.... rides with a wind jacket SAIL! :P thx for the vids. love this new form of content! very relatable!
My admiration for your dedication to the channel increased with every revolution of that ‘front disc’! Back in the 80s a mate had a Shorter low pro with twin disc. The front was, wait for it, 24inch! He was about 6s per mile faster over our local 10 mile TT course, and could have been faster still perhaps, if he hadn’t sh*t himself with every puff of wind, or passing car!
so when do wet get to see a bike with all the weird things you've tested out combined into 1?
The disc wheels with the cheapest carbon frame, chinese groupset, holey tires, the unusual crankarm...
I had front and rear disc covers on my Challenge Hurricane recumbent. Used it on my commute, which was a 45 mile round trip. I recognise the handling haha. It was a lot more controllable on a recumbent because of the smaller 406 wheels.
I have a recumbant trike with both front wheels covered and a trispoke in back I had a disc in back to but the trispoke is 1/3 the weight of the rear cover I had so I went with the lighter weight over more aero also sporting 406 on all 3 wheels .
Did the same thing back in the 1990's. The speed gains was outstanding, but winds made the ride pretty janky at times, and sometimes downright dangerous.
Double disc wheels and a jersey blowing around like Batman’s cape! You couldn’t write this stuff! 😂
So aero
Seeing that made my brain hurt. 1 step forward, 2 steps back!
Rim brake joke got me giggling
As new to this whole cycling thing this helps me loads! Thanks!
Mate of mine told me of riding with a pair of ‘Spinergy’ tri spoked wheels when he lived and raced in France-a strong cross wind made the bike lift off the road and dumped him in a ditch……… Top marks for trying it out Francis, but rather you than me-the 50mm deep carbon rims on my Roubaix get twitchy in strong wind-and we get plenty of those in the Fens…..
When I was 10 I had a Raleigh Xtreme, kind-of-hybrid kids' bike that had double disk wheels. It was the coolest thing I'd ever owned.
Yeah man, I had a mini BMX and bought white plastic disks from the local department store and I seriously thought I was riding a bike from Tron or something.
Watching some of the old videos. You really need an adventure with the whole gang - Laurence, Chris, James, George and Jimmy
Been thinking about this...just for kicks. Recently I've built my own rear wheel cover out of thin pvc sheet. Planned it for a long time, so it went together well, looks cool, seems effective, and gives no trouble. I made a test cover first, taking what I learned to build "prototype II". Wrapped it in carbon 'fibber' vinyl wrap too. Looks real. I kinda wanna fit the other one to the front just to experience it.
00:01:56 is the weirdest Superman reveal of all time
Used to have a 40mm deep Felt wheel I got from the local triathlon shop for not much money as it came stock on a bike and the new owner wanted something more fancy. I had a £60 disc cover on that. Was fine for a 21 min 10 mile TT and a 54 min 25. Didn’t make a nice noise though which is the biggest downside. :)
Oh do the covers not make the sounds?? 😢
I had a disc on my front wheel on my BMX bike. I did a wheelie right as I was hit by a strong side-wind and my front wheel got blown side-ways and I flew off the road. I would race with the disc but soon realized it was dangerous. If I were to be hit sideways by a strong gust while in mid-air off a jump, I could get very injured or killed. It did look cool and my bike had a cool drum humming sound but that also meant my competitors could hear me coming as I tried to swoop them.
This is pretty awesome to see y'all experimenting with disk! We/...some of us.... run carbon fiber rims on our bikes and recently have been experimenting with carbon disc mounted on our rear wheels for aerodynamics to get top speed. It really works at higher speeds roll racing between 160-215mph the gains have been backed with Dragy data! My bike would top out in 9/10ths mile at 209mph and with rear disc I'm hitting 212-213 mph back to back. I had to remove the carbon wings off my bike because they caused over 45lbs of down force at 195mph which scrubbed off mph. I really enjoyed the video and learning just how much stuff transfers over between our bikes, its insane how far technology has pushed us in the past 15+ years.
That wasn't the double disc I was thinking of. Must be sketchy AF in a crosswind. Testing stuff so we don't have to, thanks Francis.😄
5:36 I bet you were really proud of that joke, Francis. And you should cuz that hilarious 😂. The rim brake crowd seem to be really hostile whenever they hear the slightest negative comment.
Thankfully it’s never windy in the UK so you’ll be able to use it all the time!
1:56 Francis rips his shirt off like Hulk Hogan and he’s really just cardboard on the inside.
Hahaha
I'm scared to ride my 60mm when there's a bit if wind I can't imagine riding a full cover 😳 lol
I don't really care if it is unsafe or what - it looks amazing and that is what cycling is all about, if i am not mistaken?
Rim brakers going over the edge of a cliff really got me chucklin'
That frame is so tasty. Scott is missing a trick by not selling that to consumers even if it's only available as a special order product
As a kid i DIYed some disk wheels out of pizza boxes and duct tape after seeing cycling on the Olympics. They were cool.. for the first 5min. Then the tape came undone and it all got tangled up in the wheel and i fell off.
The rim brake people joke had me in stitches 🧵
It's great in goal for bike polo.
God Bless you Henry!
This video brings counter steering to mind!
Very impressive problem solving!
Come on Jimmy I'm a fellow Valley boy we love the rim brakes lol great video Francis.
Haha
If you remember way back when all the TT bikes had front disc's but they were like 24 or 22 inch wheels to minimize the funky handling .
Literally no better sound than the “womp womp” of a disc wheel
As a kid in the '80's I remember wheel discs being available for mountain bikes and oval racers,it seemed a great idea until you picked up speed on a windy day,not to mention the road noise amplification.This resulted in riders removing the front discs until they dissappeared altogether from the scene,what goes around comes around I guess.
It's basically a giant carbon dork disc.
Now try them with a smaller frame but extra long stem and wider bars
I ran RevX wheels for a few years. Having flat bladed spokes, it got very sketchy in a cross wind. I imagine these were far more scary.
I like yall immediately addressing the click bait, unironically
Not very practical but does look pretty cool
sounds cool too
recumbent riders often use disc in frontwheels. They made the discs out of Kite cloth, which is bend over a circled glassfibre rod. I rode frontdiscs on 2 bikes with 20Inch front wheels. 1 bike rode fine no issue, 1 bike was slightly uncomfortable. The geometry of the steering is very important for the handling in crosswinds. But with bigger wheels it also gets worse.
The flapping jacket must also help with the aero. 😂
Would like to see you run a SRAM Hydro-R Hydraulic rim brake and get your opinion on that.
PLS !!! yeeees please!!!! 😏👌
These wheels sounded so cool going down the road! 80s & 90's cyclist had to have these if you were cool!
My experience.. When heavy rain come, i can realy feel the "brick" on my wheel😆
Wheel covers that don't move and go on the outside and we can have disc brakes. Especially with a brake duct.
Have run double disc's on a track bike outdoors before, wouldn't ever again etc
A 'win' tunnel? Sounds like the bore of champions.
Worked, thx
I love to watch you videos since I got into cycling. Keep it up.
I like your glasses. What are these?
Sungod airas!
Disc covers were really popular in the 90s. People would put them on MTB back wheels only, usually...
been said already but this is fairly common on recumbents. I've driven two recumbents with disc wheels, but due to the different handling it's not that bad. Also 406/451 wheels low down barely catch any wind.
Doesn't really speed you up when you're 300lbs by the way.
I remember riding double discs in about 89 on my Raleigh Banana. Nearly took off with a side wind.
I like the look way more than I imagined
loving science with jimmy as of recent
SCCIIIENNNCEEEE!!
@@Jimmidoesstuff hahaa no waaaaay! 😅 Keep the experiments coming buoys
Gotta love the combination of aero wheels with a loose jersey
Usually I avoid riding in the rain, with these I'd have to wait until, idk 5 mph windspeed or below. That'll be I'm guessing like a good dozen times a year xD Probably unobtainable at your place at all!
I live in Scotland near the sea... hmm... don't know if there is 1 day in a year like that :P
Gravel disc wheels…. coming soon… sponsored by GCN
I've ridden double disc's and there are some unexpected handling issues most it's bad over steer when turning the front wheel to any degree the wind hits the front side of the disc and it wants to take the Bars out of your hands
Damn jimmi be flexing that SKX007 drip 👀
I remember this in bmx in the 80s
Double dork disc for the front wheel. What a strange world we live in.
I ran 85mm rims on an aero bike I used to own. The scariest experience I’ve ever had on a bike. In the wind is bad but being overtaken by a HGV is truly terrifying!
Interesting how big a difference it makes! I’m riding 50s for more than a year now and i’ve never experienced problems with crosswinds or trucks.
@@TSonemusic It is interesting, now I’ve learnt my lesson I use 40mm rims and they are fine. I don’t think I would use a solid disc wheel if you paid me now.
Yeah it’s scary. I mounted 50mm deep on the rear and 38mm on the front on my road bike, thinking « hey, I have tons of experience mountain biking and motorcycling and I’ve been riding bikes my whole life, how bad could it be? ».
And I discovered that on windy days, even just 38mm front is uncomfortable.
85mm must be plain scary.
I think it depends a lot on rim profile and the tire fitted as well ...
I run 65mm deep front with no issues (and live near the sea, so lots of crosswinds) it only gets twitchy if the tire gets wider than the rim.
It helps to have a deeper rear wheel as a "stabilising" effect.
I used to run box section 24mm deep thinner wheels and it was not better (sometimes worse).
@@PauloSerra That is interesting, I’m sure I ran 25mm Continental GP4000SII on them and really was bad. I’m surprised you have no issues by the Sea though, always breezy their. I suppose it also depends on the build quality and spike tensions etc.
got an ezdisc on my tt bike. very good
All those aero gains of the front wheel disc, negated by your flappy gilet 😂
have you compared the moment of inertia difference between a disk and a spoke wheel?
So this leads to the first item on the list.... An AeroPod 👀 go on.... You know you want to!
Bike looks badass by the way....but also sketchy as almighty hell 🫣
By the way.... Could you possibly do a comparison between a hard-tail and full-sus MTB at some point in the future? Not sure which one would be best as a newbie to mountain biking?
Rim brake people aka “The Rimmer’s”
they’re coming for you now
I lived a few doors down from a chap that made and used a full body composite Faring, I hear it was the devil in a crosswind but beyond fast on a calm day. You need to get one sorted in 2021 so we can see again how dangerous this Idea can be.
Can you get a 0mm offset fork and run these wheels. It might settle it down a bit
After watching again, I don't just think, I know my homemade covers are simpler.
I ride chromoly frame on 88’s n they are blades with pista air crankset n the most enjoyable bike ever and so efficient I barely feel like I’m pedaling with a 50:16 ratio. I guess because the frame is a bit heavier I hardly feel the push when there’s wind. Only when it’s over 25mph winds
I think you should mail Aerocoach 🤔 They have a Windtunnel ..
Maybe in Collab with Parcours ? to "test" the cheaper Disc Cover against a proper Disc Wheel? ..
And hey.. I've your there ... I mean.. you COULD test the Front wheel Setup too.. 🤷🏼♂️😜
Win/Win
Great scientific Content.. AND a lot of Fun too 😅
I think you should call or mail both 😏
DO IT FRANCIS !! NOW !! 😂
it’s like riding a sail boat!
"They won't be able to stop" ;-)
mercedes' F1 team has a wind tunnel. they're in bracknell i think.
If you promise to come to one of the local TTs up in Northumberland, I’ll see if I can talk Sharon into letting you ride it for content.
I am really thinking about testing this out !
Thing is that I think I may get away with it because I run 820mm bars on my commuter but its probably what will cause me to crash ;o
Wait a min... What did you do there? A hg freehub cassette on a SRAM axs groupset? Need to know more please! How'd it perform? Where (AliExpress obviously ;)) Issues etc?
Nah worked fine - except for the 34 because the mech is a 33T max
I would definitely consider double disc for triathlon on flat smooth day.
Since making this video I’ve found out some interesting facts about discs, will do an update video today
My bike does not have traditional spokes and I have noticed a loss of control during high winds and speed.
I wouldn't really use them except if i were to stay in cities and never get into any sort of winds
Don't worry Francis, the popo aren't gonna get a single statement from me
Suggestion for a video: a dinglespeed ride. Got 36/14 and 32/18 on my commuter, works pretty well with these cheap shimano BMX cogs and their very long teeth.
Dinglespeed 😶
@@Cade_Media Just watched your Atlas singlespeed video, so I thought your knees might like a dinglespeed setup for an occasion like that.
@@Cade_Media Some bot is spamming in the comment section saying "you won a prize". You may want to investigate...
My mistake thought you were turning into durianrider!😜
Wheeeeelers!
Wait, what cassette is that? It works with Sram chain?
Ironically I rode double disc on my BMX back in the early 90's. ... risk never crossed my mind
Pressure is directly proportional to surface area. BMX wheels are a lot smaller therefore pressure is a lot less.
you just didn't have a lot of wind in the 90s
Says the one who's even wearing a helmet in the profile pic^^ :-P
@@KNURKonesur 😁😁😁
bmx riders should not worry about risks, should they?
Francis, it might be interesting to test this setup with the new set of headset bearings that don't need lubrication because the balls are encased in some kind of solid silicone. The drawback is that these bearings are actually slow, but in a case like this, it would be perfect to dampen a bit the twitchy nature of the front end. Big advantage, you never need to service them, ever ! And they also have a lifetime warranty.
GCN Tech, a while back, showed the article describing these on their "Hot Tech" segment, and I thing the new Colnago C68 has these.
Couldn't find them on the net, and can't find the video GCN Tech (Ollie and Alex) talked about those.
Keep up the testing, very very interesting and a lot of laughs.
To the person reading this: Even though I don't know you, I wish you the best of what life has to offer 💙
Extreme spandex cycling!!
Dude you don't need a wind tunnel. You need a Notio. Your very own wind tunnel / aerometer.
Nice video...
What about using a UCI illegal old front Trispoke road wheel. PS. I had one of those bolt on disc thingies, 25 years ago, but I gave up using it because of embarrassment.
PSS. Try riding with that disc and Tri bars.
Rode it always in the past you'll get fast like wind sailing side ways......😁