chadathlon wrote:
Hello,
I remember reading a while back about problems people were having with the non drive side bearing being loose. I took my bike to a very trusted mechanic yesterday and he said he can basically install and remove the non drive side by hand and the drive side is perfect. The bike is a 2016 with about 4,000 miles in 14 months, Project 1. I have Ceramic Speed bearings which were installed when the bike was purchased. The mechanic told me yesterday that the crank currently has minor play in it as the cranks don't spin well if he tightens the preload more. I took the bike in for service at about 2,200 miles, 4 months ago, and they said the bottom bracket was really dirty and I should bring it quarterly. The drivetrain was real smooth and after the bottom bracket service mentioned previously, the cranks were not as smooth. About 1,500 miles later the cranks started to creek so I brought it to a mechanic I know who is extremely thorough. He said the non drive side ceramic speed bearing was shot and it was extremely dirty all around. Ceramic Speed warrantied the bearing, but I tend to think I am having a similar problem as others have regarding the BB-90 bottom bracket material being worn out. I rode the bike today after the bearing was replaced yesterday and I could feel the play in the cranks. I know other people have had the same issue with the non drive side bearing. Very frustrating with a $10,000 bike.
Has anyone dealt with this recently? If so, what did Trek or your dealer do you for you to remedy the problem? Any other information would be greatly appreciated.
Thank You.
I have CS bearings and I have not had this issue at all. My bearings are 13 months old and they are very clean.
What crank are you running? Have you checked the preload yourself?
I've had the lbs put too much preload and also not enough on many occasions. Also had them not tighten the non drive side crank arm. Trust but verify.
Assuming all checks out, I'd be talking to trek. I could not remove or install either of my bearings by hand. Both needed tools. I'm leaning towards this being a frame tolerance issue.
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