How To Refurbish A Rear Derailleur | Road Bike Maintenance
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- Äas pĆidĂĄn 18. 12. 2016
- Take your old road bike parts from useless to new again! This week, we show you how to revamp a rear mech. Hit thumbs up for more like this! đ
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We all have an old bike, or old bike parts that we don't quite want to let go of. And, the fact is that old parts look cool, and, with a bit of love, they can work almost like-new again.
That's why we wanted to start up this mini-series. It's not just because we have some old road bike parts lying around, it's also because it's a really common question from you guys. Don't forget to leave your video requests down in the comments below!
In this video, Simon shows you how to get an old, frozen rear mech working again. In his case, it's a classic Shimano Dura Ace 7700 rear mech from over a decade ago. The technique that we outline for refurbishing your rear derailleur should be very similar across Shimano and Campagnolo rear derailleurs. And, your mech can be older - or younger- than the one that Si refurbishes in this video.
One thing, though - if you're trying to recondition a SRAM rear mech, the technique will be slightly different. Check out the video for more information.
As always, let us know what you think down in the comments and don't forget to LIKE and SHARE this video!
Watch more on GCN...
How to replace your jockey wheels đč gcn.eu/2h4jnth
How to index your rear derailleur (perfectly...) đč gcn.eu/2i7LKTp
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Arthur Pochon - King Of Swing
Arthur Pochon, Charles Chemery - The Bee's Knees
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Leave us a comment below! - Sport
My Shimano RD-6400, 600 (Original Ultegra) 7 speed from 1989 is still going strong after doing this type of service regularly. In fact all the parts from that groupset are still ok. Only the brake blocks have been replaced. With the right care parts really can last.
I really like to see that you also encourage using and maintaining older parts. Not that I do not love your reviews and the love for the newest most awesome stuff, but I also think we as cyclists sometimes throw away or stop using stuff that's perfectly fine!
A tip I was told, and now follow, is to take a picture of the part before you take it off / go to the next step. That way by stepping back through the images you have a the step by step instructions on how to reassemble showing the part's final orientation.
This is something that we get asked a lot. Plus, it's a great way to save some cash...
Want to see more videos on refurbishing bike parts? Let us know đ
Global Cycling Network absolutely! and not just parts, I want to see a project bike!
Would be awesome if you could do the same for a front (shimano) derailleur..
I can't adjust the outer limit on mine, so the chain slips off every once in a while.
Global Cycling Network maybe get a retro frame, and equip it with modern Dura ace componentry, than compare it to a modern day equivalent.
Yes!! I'd love to see GCN get ahold of an old bike and fully restore it! it would be awesome, you could acquire it very cheap and then auction it to charity
Brake calipers. One of my bike's rear caliper is gunked up and no amount of spray / soaking seems to get it back to its springy self.
it pisses me off immensely that the adjustable wrench behind si is placed the wrong way round for the outline drawn on the tool board.... come on lads- keep it together...
Why did you say that? No i can't stop looking...
Ialso noticed that, and it pisses me off as well.
toasty bear I spotted it immediately and have had to stop the vid and go through the comments to see if anyone has commented about it. I'm glad I'm not the only one.
Come on GCN..Get your shit together lads. Your meant to at least look professional.
Curb your OCD ;-)
David Torr I did the same exact thing. It's so infuriating!
Enjoyed this video Simon. I've just recently done a lot of work on my own bike. Replaced the bottom bracket; replaced front derailleur cable and adjusted setup; replaced both tyres; re-routed rear derailleur cable and re-indexed correctly, after a LBS botched it and charged me top dollar!; cleaned and re-greased the head set and forks; replaced the chain. All these done with inspiration from your videos and a couple from *cough* other presenters. Learned a lot about my bike with doing things myself. Keep up the good work.
Take a photo of it when you take it apart. And at any stage inbetween where you might forget. Basically take lots of photos and use those.
Video it all as you go. Camera on a small tripod or maybe a head cam/hat. Great stuff GCN. Watched your derailleur video and tuned my 105 gears last night at 9.30 pm. Saved todays ride. Thanks guys. Your the best.
I love you guys for making this video! Have a 1992 dura ace derailleur that clearly needs a job like this. Looking forward to trying this!
Thanks for this. I have just serviced a Campag rear mech and agree the top pivot is a pain to get back in place!
I did this to my cross bike rear mech that wasn't springing back and after you had gone up a climb and shifted down your chain would be loose. This procedure freed it up and it now works good as new , thanks gcn
Love the show! after watching this video refurbished a Ultegra derailer that I was going to throw in the bin now Iâm easy going to get a few more years out of it cheers Si
"a reasonably complex job"
Good ol' english translation:
"a bit of a faff"
I just recovered my Dura-Ace 7800! Immediately upgraded to 1x10.
Thank you GCN
the last time I tried to reassemble this I turned it into an Aston Martin and I am no longer riding ! but seriously, I would let the pros at my local bike shop handle this process . great video , enjoyed it !
just what I needed thanks Si ! I had used a strong degreaser to clean my chain and cassette but was way, way way to liberal with it. I think it stripped the grease out of the jockey wheel pivot so it seized up.
I know its old vid but was very satisfying to watch and results great.
Si, you do a very fine repair video. I enjoyed this one, thanks!
I have tiagra from 2000 and It still works beautifully
This system of gearing have been around forever and is so delicate - it would be interesting if you can test some other more integrated systems
not only is Si a great cyclist but also a jolly good bike mechanic!!
Just picked up an old Cannondale R600 for $25.00 someone left outside in the elements..
So far haven't had to mess with to much other than the Campagnolo Ergopower gizmo for the front derailleur..
Wound up being the cable needed cleaning.
thank you from Germany, boys you are really the best!!!
Love how a young person calls something from 2002 old... I love these types of how-to: czcams.com/video/CPLiW-0zLa4/video.html because it's detailed and from go he says "you'll need this..." so I know whether to spend the time watching because it IS something I can do at home!!! More at-home, bare minimum on-a-tight-budget upgrades or esp refurbishing videos are so necessary nowadays! Thank you so much for all the joy, expertise and KUHnowledge you drop on us all!! I hope to see y'all grow old riding bikes, making adjustments as you go as you age and sharing it all right here for us!! Blessings!! Cheers from across the pond lads! So grateful for all the G_N channels!!!
That was a very informative video. Can I make a helpful suggestion, get yourself a small detachable vice so you can hold things you are working on. Peter
Watch RJ The Bike Guy's derailleur disassembly video.
So glad you did this video great timing as I have just started to suffer a sticky bottom pivot and resulting chain slip. It's like having my own personal channel tailored to my every need. đ
Just bought an old second hand bike with 7700 shifters and brakes. Good to know there's probably a lot of good kilometers still to be ridden with it.
The small adjustable wrench "spanner" is on the wall backwards.
today I was servicing my old Sora with a friend and we used a spare rear derailleur hanger to hold the tension plate in place when locking the spring.
It was too hard to do it by hand, I think my thumbs are still red from trying to hold the plate against the spring x)
Sometimes the key lesson from a video is identifying those things that I will leave to my LBS.
YOU are awesome guys!!!đđ»đđ»đđ»đđœđđœđđœ
great video! looking forward to more of these
One thing that didn't come across in this video was removing the bolts. Where Si had rust on the outer of the bottom pivot sleeve my Ultegra 6700 was rusty on the inside of the sleeve and the grooved bolt preventing the cage from swinging back fully. I had to sand off the rust inside the sleeve with a piece of emery paper and a cotton bud. It may also take Si about an hour but for anyone attempting this for the first time don't be surprised if it takes half a day including getting the mech off and back on again including building the cage and jockey wheels back up on the frame if you don't want to split your chain for any reason e.g. No new pin or quick link
Use lemon juice & scouring pad to remove rust, then re grease to avoid further oxidisation đ
#gcnhack
could you guys make a video on repairing road bike cage hanger when it's bent?
Any chance you could make a video about types of grease? Which one goes where and why
In case of Shimano parts you can almost always get a very good (I would even go as far as to call them superb) service manual so you don't really need to rely on something as fiddle as memory to keep track of "how did it went apart ?".
For SRAM mechs the possibility of servicing the main pivot depends - some of them can be disassembled, some can not. For example SRAM X5 mountain derailleur from 2010 can be disassembled with no problem.
just a word of warning, when taking things apart with springs and circlips in them, best to wear safety glasses, we have a chap at work who had a circlip go into his eye and he now has a glass eye ! ouch
The correct way of spelling 'mech' is 'deraielliÚoiauéÚérré'. It's a French word, you know.
Maxz OH MY GOD YOU IGNORANT BLOKE ITS SPELLED DESREILOUER
Y'all are both bonkers, it's a Durraillikoenigseggerfahferwafflenugen, which in Cycle-chat translates to "Made in China".
Maxz Thank God, where would we be without you
Maxz ... why too fast legends - no time to read and assimil their meanings -- ???
lol
I like this, but slower removal of parts so we can see the orientation as they came out. Also more IN FOCUS close ups would be good. But the idea of the video v good.
Tks! This video helped me a lot!
5.50+ VERY LUCKY ! #spring Big hand to Si REAL HARD JOB THIS !!! đ
great video,guys. thx for that
Why is Si not wearing safety glasses and gloves?!circlips and springs are a nightmare when they ping off. Cleaners and solvents will ruin your skin. 14 years in F1 has taught me the value of personal protective equipment (ppe). Love the vids
F1? That is interesting! What team(s) have you worked for, and what was your job, if you don't mind me asking?
I second that! The gloves and glasses that is.. not the F1 part. You'll feel the pain before you hear the 'ping' of the spring launching at your eye balls.
Bateleur90 for cosworth in U.K., was Minardi Jaguar Jordan Williams. Then Red Bull now Mercedes. Long hours, but great work. Still wear ppe to do simple jobs..
You could also use some rust remover to take the rust off those parts.
A sandpaper ?! Come oooon ! lol
good video, make same that focuses on pulley wheels,clicking sound
The Glorious Cycling Master Race
I'm pretty broke, so I've done this alot. Putting that C-clamp back on... I see you cut out the 30 min or swearing and hurting your fingers... Aside from that, nice video, glad to see I'm not the only one who can do it! Maybe don't wait 14 years though.... I do it every 2.... Haven't done my NOS 7700 yet though... next year I think.
Given the corrosion it would seem that the seal shown gave up the ghost a long time ago and surely should have been replaced. Hopefully for people doing maintenance these components are still available?
Can someone please tell Simon to turn over the small adjustable spanner. My OCD is killing me.
thank you,very good video, but....what about the "earlier" step, i mean when it seems impossible to take/loosen the derailleur from the frame? I cannot at least, so : HOW to unscrew the allen screw nr 5 ? ;-) without damaging/forcing any part, I tried some different methods ;-( thank you
yes, to me, a bike from 2000s is not old. That thing was left out in the rain for a year. As a first step, I would not take that thing apart. I would put the whole thing into a ultrasonic cleaner with de greaser. They are cheap and you can use them with everything. Then I would brush the whole thing to loosen the stuff. I bet a lot of problems can be corrected without taking a complex machine like that apart. Then I would put it in an oil/ petroleum based cleaner for a day to soak. It may not RENEW the derailleur, but you will be able to free all linkages and use the derailleur , and you know that all the parts are correctly installed from the factory. I hate being destructive for the sake of cleaning unless it is a simpler machine....
I've got a very nice eighties Peugeot bike (Peugeot Champagne men's bike) with a Simplex 6 speed rear derailleur. Any special advise on that?
i love old dura ace
the moral of teh story is don't buy SRAM
***** I have sram red and it's great
How about the other spring? The one that controls lateral movement through the gears? Is that replaceable? Because I think mine is soft and the mech won't quite make it to the lowest gear on the cassette. Even with the limiter screw completely open. ???
GCN could you build a retro bike using the parts you renovate or just put them on a bike to see the full thing in action
Any idea for what to do if the spring is worn out and doesn't have enough tension to get down into the smallest cogs? Is it even possible to salvage a derailleur with that problem?
Great information and informative. However, all the parts really should be totally cleaned of all old grease and grim before you put them back together, just my opinion.
from my experience, to actually remember how to reassemble all the fiddly parts back just simply take a photo of your derailleur, so that you can at least have a picture to get your job done, just as easy as that :)
I really wanted to see this rear derailleur installed in a bike up and running...
a technical question: Si, what is the main difference between this muc off translucent grease and a standard opaque white one? Thanks! #torqueback
First lesson of bike mechanics, when working on springs always wear safety glasses...
Degreaser in the eyeballs is a bit of a wakeup call too.
Also keep your mouth closed.
I was thinking the same thing. Glad someone spotted it. only got one pair of eyes
what about using an ultrasonic cleaner with some degrease and hot water?
When doing this: take pictures! Better too many than too few.
make a video while dissembling, watch back during re-assembling (while keep filming) and upload everything on youtube as instruction video
Always have safety glasses to hand!!!
My Fuji 2.3 rear sora derailleur doesn't like to shift up in gears, but it shifts just fine gearing down (smaller sprokets). So my indexing and cable tension seem good as when I'm forcing the derailleur to move with cable it's good...but it seems the tension of spring or pivot points need to be lubed. Does that make sense for troubleshooting? I was thinking the spring isn't powerful enough anymore...but after seeing this wasn't sure. Thoughts?
Good video congratulations there is no filling better than taking something apart and putting it back together (without any extra parts)
I use dura ace 7700 derailures and I prefer it over a 7800 and 7900
pro bike video of Si's of cyclocross bike !!!
Ha ha the derailleur is the same age as me đ
The longest spring in the RD that is meant to pull inward does not work...can anyone help to sort it out.
14 years old, man my newish 105 derailleur gummed up in only 2 years.
BBC presents - Simon Richardson: The Reassembler :))
nice one
At 1:02 , might be OCD but tha small wescott is flipped from the drawing on the wall ;)
I opened my derailleur and now it lost its tension, I cant get the spring back in. Its a shimano nx. Does anyone have tips?
Bien cuidado son eternos
Hi GCN! This isn't related at all to the video but I was hoping you could give tips on how to carry your phone while riding. I got the new Iphone 7 plus and now I'm having a hard time carrying it in my jersey pocket.
Tomas Mojares I mounted an otter box belt clip case to my front stem with wire ties. It works great and I can also monitor heart rate, speed etc. using Wahoo tickr x software to upload to strava upon ride completion.
I'm thinking of lifting the seals up on my jockey wheel bearings and injecting some Phill Woods grease in there.
Good stuff, but possibly too stiff. Those are very low load and need to spin freely, I use spray lithium. Might try some White Lightening dry lube some time.
Is there a video on unsticking the brake quick release???? My rear ones are always sticking
afraid not, try a few drops of oil on it, make sure it doesn't go on the rim/tyre though
What is the Park tool on the right of the large adjustable spanner used for?
Pedal axles.
Safety glasses on in the workshop - ALWAYS.
Plus, they're not Jockey Wheels. There is a Guide Wheel and a Tension Pulley.
Excellent video - BUT I know if I attempt this I will destroy my bike LOL
I'd like to see what happens between 4:26 and 4:27? Seems like the jockey cage self assembled.
Iâve got a 1987 shimano tourney rd ty10
rjthebikeguy has videos like this and though he films them solo 1 can actually see what he's doing
Performance wise is better to have a Dura-Ace from 2002-2004 or a Sora or a Tiagra form 2012-2013 ? #askgcn #tourqback
I ride a Dura-Ace 7700 from 2002 and I think a modern Tiagra would shift a little bit smoother, but the DA would be more reliable.
Should i lube rear derailleur with engine oil ?
This takes a lot of practice, swinging the b tension over with your hands is near impossible, RJ the bike guy illustrates how to do it by removing the b tension screw and using a plyers to swing it over while properly seating the seal at the same time. I thought these guys were pros, I guess if they look authentic they must be, but not so...
Working out (spending time in a gym) once a decade is not helping there (3:27), right Si?
Allways using degreaser is not a good idea in my opinion. I would use some multioil like wd40 instead. That stuff comes deeper into the moving parts, it is better in removing rust and it is noch washing away all the grease there is. Instead is lubricates it a bit. On a rear derailleur thats maybe not that important, but when in comes to high stress parts like the chain, i would really advice it for long lifespan of the components. After the cleaning, put some proper lubricant on of course.
What about the front mech?
Use your camera and take lots of pictures when you take it apart. It makes it a lot easier to get back together.
Not touching the parallelogram at all??
My OCD is kicking in.........Your small adjustable spanner is hung up backwards..................Whats the point in drawing the little outlines?
IK the feels.
Nice
AHHHHHH, turn the left crescent (adjustable) wrench around! If you are going to be OCD with your tools Si, at least do it right ;)