rear derailleur

  1. Willam

    Help with rear derailleur

    Got a carrier bag stuck in my rear derailleur on my way home yesterday, it’s totally knocked my shifting out, not sure how? Chain doesn’t want to move from the smallest cog, I’ve tried following yt vids on how to adjust the RD, not sure if my model is different to the standard but can’t seem to...
  2. Mike_P

    Rear derailleur only shifting to larger cogs

    Bit bemused, apart from the smaller cogs I cannot get the hybrids rear derailleur, a Shimano Tourney 6/7 speed, to drop onto a smaller cog, changes up to each larger cog without a problem. Is it new derailleur time?
  3. Gunk

    Wanted Campagnolo Valentino 5 Speed Rear Derailleur

    I'm looking for a 5 speed rear mech for an old 1960's/70's Claud Butler Olympic. A basic Nuovo Valentino will be fine. If you have one spare please let me know.
  4. M

    Rear derailleur configuration

    This is just for thought. Please don't respond with vitriol. We all have personal preferences, no one school of thought is correct. The very first derailleurs manufactured in the 1940s and 1950s had a spring pulling the slider towards the largest sprocket (just like today in low-normal /...
  5. M

    Rear derailleur problem or not?

    I don't know if this is a problem or not so thought I'd better ask here. I have a Giant road bike and the rear derailleur is a Shimano Claris. I've just tried adjusting my gears after they started to jump a gear when I shifted to the largest sprocket on the rear cassette. It seems to be working...
  6. Hugh Manatee

    Rear Derailleur. Will I be Shunned?

    Not entirely serious here, but is there any reason I shouldn't? I mean, a mountain bike mech on a road bike!! Burn him! I have a couple of other choices. A very nice Mavic job. Trouble is, it will be used in all weathers and that particular mech operates on a weird circlip spring loaded...
  7. Brento10

    SRAM Force rear derailleur chain sagging

    I have fitted a new KMC 11spd chain to my SRAM Force 22 groupset . In the 34t ring my chain is sagging has not done this previously it results in my chain meshing against itself when in 34t front and 5th cog at the rear The spring tension appears to be ok in the rear derailleur . Any advice...
  8. 3

    new rear derailleur for old school 80s road bike.

    So 80s era road bike. I recently changed both 8 speed rear cassette (now 11-32) and added a smaller front chainring (now 38-52). My derailleur is Shimano 105 from that era, I have down tube friction shifters. The derailleur is a short cage (SS in Shimano terms) and I want to change to a medium...
  9. nickg

    Rear derailleur cage size

    On my rear derailleur I have a long cage. Should it be a short cage on a road bike? Just been comparing it to friends bikes.
  10. funk2monk

    Le Cyclo Rear Derailleur Shifter

    I've just acquired a Sun cycle with the above deraillier. I've tracked down a NOS tension spring, and the rest of the mechanism looks like it will clean up well. The cable is a continuous cable which is in tact but just thinking out loud where and how do you replace these? Picture for reference.
  11. L

    When replacing a chain at what angle should the rear derailleur be?

    Photo 1 is in biggest rear cog and front on biggest ring Photo 2 is in smallest rear cog and front on the biggest ring. I feel that in photo 1 the angle of the rear derailleur is a bit too much??
  12. B

    Poor shifting - replace rear derailleur?

    Shifting is poor and when in any gear it isn't smooth. I've tried to adjust tension etc but it makes little difference. There is some play where the mec attaches to the hanger but tightening the relevant bolt makes no difference. Does anyone know why this is the case? I have fallen on that side...
  13. DCBassman

    Rear Derailleur Question

    Going from 8 to 9 speed... Does a 9-speed mech travel any different distance to an 8? The cassettes are the same overall size, no? Just wondering if I need change to a specific 9er if all else is changed, ie cassette and shifters...
  14. Jenkins

    Acera RD-M370 Rear Derailleur - 9 Speed - SOLD

    Brought this from Evans about a year ago as ex-display, test fitted it but never used and couldn't be bothered to return for a refund. Cosmetic scratch as per the pictures - £10 delivered with payment by Paypal or bank transfer.
  15. G

    Rear derailleur installation issue

    Been trying to fit a new Shimano XT rear derailleur with 11-46 sunrace cassette but having issues with derailleur (tension?) When in 46T ring the top jockey wheel sits just on the cassette teeth but as soon as you move down the gears it's terrible and doesn't hold position at all. Nightmare! by...
  16. Mr. Cow

    105 rear derailleur missing screw..?

    Hello :smile: I had an off and on inspecting the bike I noticed there appears to be a screw missing from the rear derailleur? This is on the underside near the cage section.. can anyone tell me what this screw was for, and if it might stop me nursing the bike home? Upside down the bike...
  17. tom73

    Rear derailleur not shifting to smallest cog.

    Following on form last nights ride showed the gears needed a bit of indexing. On closer inspection and after the normal barrel and limit screw adjustment tricks to get shifting to the smallest cog the shifter has no more clicks left either. But still will not move to the smallest cog. Any...
  18. MrPorridge

    Rear derailleur not shifting into lowest gear

    Hello. I've just bought a Triban RC520 from Decathlon. However, the rear derailleur (Shimano 105) wasn't shifting into either of the lowest two gears (small chainring and biggest two cassette cogs). So having googled the problem, I did the following: Pushed the derailleur with my fingers to...
  19. chriscross1966

    Does anyone have an exploded diagram of a Campagnolo Victory rear derailleur

    Not fussed which one.... I did take photos before I stripped it, but I have subsequently lost the phone :-( I guess even one of a Triomphe would help, or a late Nuovo/Super Record (cos they're pretty similar). I would even be happy buying a tatty example to use for reference...
  20. cosmicbike

    Shimano Ultegra 6800 Short Cage Rear Derailleur

    Used for 3000 miles. Very tiny mark on side, see 1st and 3rd pic, otherwise excellent. £25 plus post Paypal gift or bank Tx
  21. R

    UPDATE: Got my SunTour Cyclone rear derailleur in the mail :)

    A quick update about me and my SunTour Cyclone. It just arrived. I opened it. Very happy. Let me know if you want pictures and I'll see if I can upload a couple.
  22. RegG

    Rear derailleur problem....

    I am having problems with the 7 speed Shimano rear derailleur on a Raleigh Siren in that it will not shift into the largest cog on the cassette. It moves smoothly between the other six cogs on all three of the front chain rings. Before I start messing around adjusting screws etc can anyone on...
  23. gareth01244

    Ultegra 6700 gs medium cage rear derailleur

    Looking for a nice example of a 6700 rear derailleur medium cage or the later 6700A that goes up to a 30t cog. Thanks
  24. gareth01244

    SOLD Ultegra 6800 front and rear derailleur for sale

    I have a set of 6800 front and rear derailleurs for sale. Front mech is band on, rear is a short cage so good for up to 28 tooth cassette. Few stuffs on both as shown on pics but fully functional with no play in the jockey wheels. Based in Chester for collection or will post out. Looking for £30
  25. gareth01244

    Now sorted. Ultegra 6600 rear derailleur medium cage

    Realise that this is a long stretch but does any one have one of the above that they would like to sell? Thanks
  26. dhd.evans

    Rear Derailleur - life expectancy?

    My Shimano 105 rear mech has seen approx 3,788 miles of use, two offs and various mashing and tweaks to keep it in working condition. I run a compact double with an 11-28 cassette on the back and the mech has never been serviced bar replacing the jockey wheels. In the small ring on the front...
  27. R

    Is it true you can thread your chain through a SunTour rear derailleur cage without splitting chain?

    I read somewhere a long while back, can't remember where I read it at but I do remember what it said. Someone wrote on this site that you can thread your chain through a rear SunTour derailleur cage without splitting it. One of my closest friends who rides and works on bikes, too told me you can...
  28. R

    Shimano Tourney 6/7 Speed Rear Derailleur

    I have a question relating to something weird. From my understanding, modern Shimano derailleurs are supposed to work with modern STI levers for very new road bikes, but for some reason mine is working with vintage road bike levers that say CHARGER on them. The only info I can find on the levers...
  29. Velochris

    Shimano Ultegra 6800 rear derailleur and cassette. New.

    11-32 cassette. £32. Medium cage rear derailleur. £40. £70 for both. Both removed from a brand new bike prior to use Prices include postage to UK standard postcodes.
  30. D

    Rear derailleur converter.

    Hello. I am building (another) road bike from my spare part "store". My friend has told me I shall need one of the above. What is it used for ? Thank you for any replies.
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