I'm going with the pulley wheels. They have to rotate for a brief moment under a lateral load before the chain moves to the selected cog. Wear and/or lack of lube can create the situation for that chirp. On a group ride last summer a rider had an intermittent such chirp and disagreed on the pulley wheel, insisting it was deep trouble in his bottom shell. I pulled alongside him on his right and with his permission,squirted his pulley wheels with my water bottle quenching the chirps for the last six or eight miles.
ANDY Pittsburgh On Feb 11, 2:32 pm, "Darin G." <[email protected]> wrote: > Here's a puzzler in the spirit of "Car Talk" for the mechanical gurus > on the post. I get a very loud chirp (like a starling) when I shift > into the smaller cogs, and a continuous loud chirp (like a flock of > starlings) on the second smallest cog . No chirp on the larger ones > or the smallest. I can't replicate it in my repair stand, but it > definitely seems to emanate from the smaller cluster. Cleaned and > lubed chain to no avail. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
