Creaking Noise
#1
Junior Member
Thread Starter
Creaking Noise
I developed a creaking noise recently while using road bike on a fluid trainer that only was present during riding out of saddle in higher gears.
Checked crank arm pinch bolts and pulled seat post out and re-lubed , but problem persisted.
Checked 105 cassette lock ring tightness with torque wrench and found it had loosen up about 3 notches. Torqued to 40nm.
Rode out of saddle in higher gears and creaking disappeared. A little surprised lock ring would loosen if torqued properly.
Checked my rear wheel that I use for road riding and 105 cassette lock ring was also loosened a couple of notches.
Moral of story check everything periodically even if torque to specs.
Checked crank arm pinch bolts and pulled seat post out and re-lubed , but problem persisted.
Checked 105 cassette lock ring tightness with torque wrench and found it had loosen up about 3 notches. Torqued to 40nm.
Rode out of saddle in higher gears and creaking disappeared. A little surprised lock ring would loosen if torqued properly.
Checked my rear wheel that I use for road riding and 105 cassette lock ring was also loosened a couple of notches.
Moral of story check everything periodically even if torque to specs.
#3
Junior Member
Thread Starter
#4
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Join Date: May 2004
Location: Southern California
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Those cassette lockrings have the clicking detents which, IMHO, interfere with an accurate torque reading.
Another variable is if the threads are greased or dry. 40Nm on a greased thread will produce more clamping force than 40Nm on dry threads.
But your point is well taken, it doesn’t hurt to check torque once in a while.
Another variable is if the threads are greased or dry. 40Nm on a greased thread will produce more clamping force than 40Nm on dry threads.
But your point is well taken, it doesn’t hurt to check torque once in a while.