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Ti frame creaking question???(8 posts)

Ti frame creaking question???hycobob
Mar 19, 2003 6:56 AM
I have a Ti bike with that same old pedel creak we all know about. But after re-greasing the seatpost (American Classic Al) and tightening the crankbolts, its still there. I used Wrench Force white grease on the post and bolts. Do any of you know if I should use another type of grease? How about another possible cure/cause...the creak goes away temporarily when I change my pedeling form.
Time to get a new bike. (nm)onespeed
Mar 19, 2003 7:14 AM
Teflon tape the BB...TJeanloz
Mar 19, 2003 7:17 AM
Is there teflon tape wrapped on the BB threads? That's the solution on a ti bike 95 times out of 100.
re: Ti frame creaking question???johnrg
Mar 19, 2003 7:36 AM
Try tightening the front deraileur clamp and chainring bolts. SInce the bottom bracket area does flex a little the deraileur clamp was the source of an annoying creak in the past on my bike. Possibly grease the front wheel clamping surfaces and see if that helps.
re: Agree with john...pa rider
Mar 19, 2003 8:18 AM
Tighten your chainring bolts. My cross bicycle was creaking this week, which sound like my bottom bracket. After tighten my chainring bolts and crankarms the creak went away.

Emory
re: Ti frame creaking question???litesp
Mar 19, 2003 8:30 AM
Does it creak when standing or sitting or both?

Depending on the above answer, I may start with the drive train - (BB, crank, chainrings, pedals, r wheel). Then check seatpost and saddle. Headset, stem, handlebar are remotely possible, again depending on above answer. For me, it turned out to be the f wheel/dropout interface.

Fatigue of a Ti frame is a very remote possibility, but do a quick check anyway around the welds.

A long lasting, smooth and economical (cheap) grease would be a marine grease such as boat trailer wheel bearing grease (creamy blue @$3/lb).
9 times out of 10 it is the BBKerry
Mar 19, 2003 5:48 PM
The solution is to clean the threads on the frame and BB, grease or anti seize or teflon tape the threads, and assemble by torquing to specification. It is fairly common to have the experience, but ticks and clicks are very hard to eliminate sometimes. What seems like it is tied to the pedals may be coming from the seat post, etc. Sometimes things like temperature and humidity can affect noises as well. To eliminate chain ring bolts as the problem, take them all out and grease the threads, the faces where they contact the CRs, and the CRs where they contact the crank spider arms. Clicks tied to your pedaling can come from the BB (grease all threads in contact with the frame and BB, and torque it to the recommended settings, which can be quite high), the pedals (grease the threads, get some wax etc. on the cleats, grease the bolts into your shoes, squirt some lube into the guts of the pedal machinery if possible), the chain (clean and lube), your seat post and saddle (grease the post, seat post bolts, saddle rails), your bars and stem (grease the stem, stem bolt at both ends, h'bar bolt, and h'bar where it goes through the stem), and your wheels (check for spoke tension, particularly on the rear non drive side, put a drop of lube where each pair of spokes cross, grease/tighten QRs). Needless to say, you want to try these things in what seems like the most likely place the noise is coming from, but there are plenty of stories about "I was sure the noise was in the handlebars but it went away when I tightened up the spokes in the rear wheel," so keep trying different things until you have success.
Best grease: Shimano, hands down.StupidLight
Mar 19, 2003 9:35 PM
Having wrenched my way thru high school and college I've tried every bike grease under the sun and Shimano beats them all hands down. Great water resistance, doesn't cake up like lithium greases, or get gummy like Phil Wood. It's meant for bearings, but I use it on everything but my MTB suspension (where I prefer lo-stiction M-Lube).

As for your creaks, I think people have hit on most possibilities. Don't forget to check your pedals for play at the axle, your seatpost head, and the seating of your rails in the saddle shell -- all places I've had creaks.

Good luck!