Bicycle Mechanics - Bent Chainring
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06-15-09, 08:33 AM
Over the past couple of days I've been hearing a ratcheting noise while pedaling, particularly when using the small gears on the rear cassette. The noise comes with every revolution of the cranks, and matches my cadence. Today I noticed that my large chainring on the front is slightly bent, so I think that's probably the cause of the noise. Do I need to replace the chainring, or can I just whack that thing with a rubber mallet a few times?
The bike is a 2005 Specialized Rockhopper, with a Truvativ AL-7075-T6 triple chainring.
06-15-09, 10:09 AM
just whack it with the rubber mallet. if it the teeth use a adjustable wrench to bent back in place.
^^^+1, but my choice of tool is a C-clamp.
06-15-09, 04:10 PM
Mallet, but remove the chainring and use a flat surface to ensure you do the job right.
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