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5
votes
3answers
838 views

How can you identify if a Shimano rear derailleur is medium or long cage?

I have a 2013 Shimano XT rear derailleur. It is part of a 2x10 drivetrain. How can I find out if it is a medium or a long cage one? The picture below shows the derailleur.
7
votes
3answers
1k views

Is my derailleur hanger too bent?

I bent the (steel) derailleur hanger on my 9spd cassetted (steel) Bianchi Volpe about 1.5 yrs ago, and I just did it again, but worse. This time the derailleur got sucked into the wheel and really did ...
5
votes
4answers
2k views

Can the Tensioner Spring go Bad on a Rear Derailleur?

My bike chain has been "skipping", so I've gone through the obvious: I replaced the chain I replaced the smallest cassette cog, which was showing significant wear After my replacements I noticed ...
2
votes
1answer
107 views

Chain overshoots cog when shifting from low to high gears

Hi when shifting from low to high gears my chain is overshooting the cog and jumping into the next one. I tried turning the low limit screw outward to move the derailer in towards the low gears but it ...