Join Date: Aug 2005
Location: Rolling hills of Piedmont NC
Bikes: 2008 Trek Madone 5.5, 2006 Trek Pilot 5.2 (deceased), 2005 Marin Novato, Trek 7100, Schwinn Frontier, Trek 800 sport, Trek 220, Trek MT 60
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Just started this morning.. and I can't find where it's rubbing. I hear the scriiiitch... scriiitch sound and feel it when I'm cranking on the LH downstroke. That's the only time I hear/feel it. Easy riding and it is silent.
When I shift from the small chainring to the mid chainring, no noise. From the mid to the large chainring, no noise. But when I shift from the large to the mid chainring and put some power in the downstroke, there it is again in its irritating glory. Doesn't seem to matter what gear the rear cassette is in.
I can't find anywhere it's rubbing. It won't do it when I'm watching it in a stand. Have to put some power in it to create the noise. Crank bolts are tight. Everything looks good. But something's amiss.
Any suggestions what to look for?