Bicycle Mechanics - Clicking noise only high cadence

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ATB24
01-29-09, 06:56 PM
Anyone have a clue what could be causing it? I have an Ultegra 6500 crank w/ those external bearing cups and the sound seems to be coming from down there.

When on my trainer no noise except when going over 110 RPMs. I checked chainring bolts ok, seatpost tight, any suggestions before I take it to the LBS?
thx

neil0502
01-29-09, 07:01 PM
You many find the following links helpful in tracking it down:

http://sheldonbrown.com/creaks.html

AND

http://www.parktool.com/repair/readhowto.asp?id=123

It's usually just a matter of patiently removing, cleaning,
re-lubing, and re-torquing fasteners until it quiets down.
DOS
01-29-09, 08:09 PM
If high cadence = low gear (small front ring); check for foot or pedal ticking the piece of derailleur cable that extends past the cable bolt.

MrPhil
01-29-09, 09:11 PM
I had a saddle that used to click at higher RPM's. Just a thought.
frankenmike
01-30-09, 01:47 PM
Depending on the pedal, it could just be a slightly loose plastic cover that only wiggles around at high cadence. That was the case with my old style time road pedals.
RockyMtnMerlin
01-30-09, 03:13 PM
Depending on the shoe and cleat combo, you might have a unused cleat bolt that moves when you reach higher RPM's.
AEO
01-30-09, 03:25 PM
if it's clamped into a trainer, it could be the QR skewer slipping around from frame flex.