Help me identify what's causing the tink
My Habanero with SRAM Force 22 crankset with SRAM MTB spider and 44/28 chainrings, and 11-34 11s Ultegra cassette, has a tink sound that is periodic with crank rotation. It occurs roughly when the DS crank is passing the DT, and it only occurs in the larger cassette cogs (23-25-27-30). Statically I can't see anything hitting or rubbing; the FD is actually in the trimmed position and is not being hit by the crank; and I tried a set of pinned flat pedals with the same result to eliminate the pedals.The cranks feel tight without play in the BB, the chainrings appear tight on the spider and the spider tight on the crank.
Ideas please? |
Check the chain quick link.
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If you wear shoes with laces, might be the plastic tip of the shoelace hitting the chainstay.
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Have a spare wheel you can throw on? I’d bet rear cassette and chain interacting weird.
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I just swapped another wheel in and will try tomorrow. |
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Edit: Yup, it's tight. |
Chainring bolts? Clean the BB spindle and BB cups? Look for a bent chainring tooth? Quick link interference? An obvious one, but long FD cable?
Nothing quite as maddening as a drivetrain noise you can't figure out. |
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Quick link wouldn't seem to be periodic with crank rotation. Bent tooth is a good suggestion but I get the same sound on both rings. Not the FD cable, this is a R8000 FD, and we learned recently in another thread here that they suck, but the cable excess exits to the rear :) Thanks for the ideas! |
Oh, if you don't hear it standing: saddle rails, seatpost clamp, seatpost lube?
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I fixed the same issue on Friday for a buddy after he'd taken it into his shop several times, and changed pedals. Anti seize and proper torque seat clamp and rails.
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