Bicycle Mechanics - clunking sound

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Uncle Ted

05-18-07, 04:20 PM

I'm getting a clunking (as opposed to clicking) sound that sounds like is is coming from the bottom bracket/rear of the bike when i pedal hard (uphill usually). the odd thing is that i only get this sound when i'm in the second to largest cog in the back. When i shift up or down one, i cannot recreate the sound no matter how hard i stamp the pedals. Any ideas?

Thanks

xzelia

05-18-07, 05:32 PM

check that particular ring for any chipped teeth, or shark toothed teeth (pointy), that would be where I would start.