Chain/chaindrive problem

Posted on Fri 28th, June 2013

• #1

JamesKJ

No idea whats wrong with my chain/chaindrive
every time i put any tourgue down, its like the chain has a stiff link init, it freezes up and makes a horrible clunking noise
i changed my chain and the problem still persists
any got any ideas??
i thought the chain might be too short??? no idea open to suggestions
• #2

carson

excessive flex somewhere in the drive chain perhaps. what setup do you have.
pics might be useful.
• #3

JamesKJ

http://www.flickr.com/photos/jamesalexnolan/9160353246/

http://www.flickr.com/photos/jamesalexnolan/9160358046/

http://www.flickr.com/photos/jamesalexnolan/9158138515/
• #4

carson

hmmn - nothing stands out from pics. chain looks in good condition - have you taken it off and checked every link?

from what you describe -esp with it happening under power, all i can think of is maybe the frame or rear mech flexing, pulling the chainline out and causing the chain to catch / rub somehow,
• #5

JamesKJ

i replaced the chain to make sure there wasn't ny funny links
hmmmm
solution?
• #6

pifko

Can you provide a close-up of the cassette?
• #7

DickBarton

If you sit on the bike with the front brake on and push hard on the pedal while looking back at the drivetrain, does anything move? I'm wondering if the rear axle is broken.
• #8

TW85

Could it be the chain pulling the rear mech backwards, up into the cassette?

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