I had a Firex crank with an FSA isis BB for past few years. It started creaking some months ago. I figured it was time to get a new cranks. I installed my new XT's last week and lo and behold, the creaking was still there. I'm pretty sure its not the crank or BB, as they are brand new.
Is my BB shell toast. Could there be a hairline crack thats causing the creak? I've inspected the BB shell area of the frame and it seems fine. What else could be the cause of this confunded noise.
Anything could cause it and it could be coming from almost anywhere.... except probably the new cranks and BB considering the creak is exactly the same as it was before they were installed.
Grease. Grease all metal to metal areas in the BB and crank area. On the BB threads, where the BB cups touch the BB shell, BB spindle etc. I've had bikes where this gets to be a 6 monthly routine. Dunno why, just is.
I had a similar creak lately, it sounded like the BB. Turns out it was the axle flexing in the drop outs. A little grease on the axle/dropouts cured it. Also try some grease between the derailleur hanger and frame.
If the bike is a few years old and the BB is brand new, then I'd check the suspension linkages AND the headset. I too thought my BB was creaking badly (because it only made noise when I pedaled), but it turned out my FSA angular headset bearing sleeve was coming loose (disintegrating internally) and it was making a very annoying noise. Replaced with a new headset bearings (from Enduroforkseals.com) and all the noise is gone!
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Mountain Bike Reviews Forum
15.4M posts
515.2K members
Since 1990
A forum community dedicated to Mountain Bike owners and enthusiasts. Come join the discussion about bike parts, components, deals, performance, modifications, classifieds, trails, troubleshooting, maintenance, and more!