So, about two weeks ago my new Nimbus ISIS 29er arrived. It’s fulfilled all my hopes and dreams and more.
However, there seems to be an issue. After about a week of riding, one of the cranks started rubbing against the frame/bearing holder thingy. It was causing a LOT of friction, which as we all know, isn’t good.
Looking at it, it was clear the one of the bearings had moved AWAY from the hub, and the other TOWARD the hub. This caused the tire to not line up under the middle of the frame, and created the friction described above.
I took the uni to my LBS, and they took the cranks off (which I hadn’t done yet) and carefully pounded down the bearing until it was flush with the hub. Problem solved! (or so I thought!).
I just got in the mail the 100mm Qu-Ax cranks I ordered. After one ride around the parking lot, I love them! Anyway, I was putting them on 20 minutes ago, and after I finished, I noticed the exact same thing…the crank rubbing against the frame, causing a lot of friction.
I imagine I could take the uni back to my LBS and have them do the same thing again, for another $10, but how can I fix this problem permanently?
It almost seems as if the frame fork is too wide, slowly forcing one of the bearings away from the hub. Maybe not though, since it still fit OK when the bearing was set closer to the hub by my LBS.
I’ll add photos later tonight if needed, I’m on campus right now in a computer lab and don’t have my camera.
Thanks for any help!
(And yes, I searched for about 5 mins before posting - found nothing.)
(If this doesn’t work out, I think I’m gonna call UDC tomorrow and see what they recommend.)