Dura Ace C24 “chirp”
Emonda SL6 developed a “chirp” associated with wheel revolution on last night’s ride. Nothing remarkable happened along the way. It is not real loud, guess about 65-70 dB. There are 12k miles on this wheel set. When spun-up unloaded there is no noise.
Swapped out front wheel and noise went away. No debris seen in tire. Carbon, stickers, spokes & nipples “look” ok. Inspected/re-lube/adjusted bearings, still noisy. Swapped QR and still noisy. Where do I look next? |
Originally Posted by BarryVee
(Post 21116613)
Emonda SL6 developed a “chirp” associated with wheel revolution on last night’s ride. Nothing remarkable happened along the way. It is not real loud, guess about 65-70 dB. There are 12k miles on this wheel set. When spun-up unloaded there is no noise.
Swapped out front wheel and noise went away. No debris seen in tire. Carbon, stickers, spokes & nipples “look” ok. Inspected/re-lube/adjusted bearings, still noisy. Swapped QR and still noisy. Where do I look next? |
Run to failure?
Originally Posted by AnkleWork
(Post 21116635)
Sorry, I can't hear 70dB so far away. Maybe just ride it. If it gets worse you'll eventually find it easily.
Edit: Found it! Turned out to be the valve stem flexing against the rim. Put on a stem nut for a test & the noise disappeared. Removed nut. Let air out and pumped back up. Quiet & ready to ride. |
Originally Posted by BarryVee
(Post 21116660)
Edit: Found it! Turned out to be the valve stem flexing against the rim. Put on a stem nut for a test & the noise disappeared. Removed nut. Let air out and pumped back up. Quiet & ready to ride.
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