RoadBikeReview.com's Forum Archives - Components


Archive Home >> Components(1 2 3 4 5 6 7 8 9 10 )


did I break a rim? I hit pretty hard and ever since the(4 posts)

did I break a rim? I hit pretty hard and ever since thejiggs
Oct 6, 2003 4:44 PM
front wheel has made that sound when I brake, of the pad hitting the weld. I don't think there is much separation but you can see the weld and feel it with a fingernail. The wheel is am classic hub and Ritchey aero rim (front)
Should I replace the rim?
Any thoughts appreciated.
It sounds more like you bent the side wallKerry Irons
Oct 6, 2003 5:35 PM
Are you sure the noise is coming from the weld line? You say that you "don't think there is much separation." Well, is there or isn't there? You can tell by looking. If the rim is cracked where it used to be welded, then that's not good. Back in the day, rims were not welded, just held together with an insert and you could manually pull them apart at the joint (when not built into a wheel). They still worked fine once the wheel was built, so there is no fundamental problem with the concept of a rim that can separate at the joint. There is a fundamental problem with a rim that has a bulged or deformed side wall. Find out where it is grabbing, inspect that area, and maybe you can smooth it out with a little fine sand paper. Otherwise, you're in for poor braking, and should consider replacing the rim.
I think I'm wrong and these rims aren't welded but justjiggs
Oct 7, 2003 8:03 AM
pinned. I'm used to welded. They only make noise when I'm braking hard at high speed, but sure wouldn't want to have rim separate at 70 kph. Maybe I'll pickup some better rims and rebuild the wheels. Thanks for your reply.
jiggs
Pinned rims CANNOT come apartKerry Irons
Oct 7, 2003 5:14 PM
The force of the spokes ABSOLUTELY will prevent a rim from separating at the joint. Unless your rims are dinged or bent, there's little reason to get new ones. Even welded and machined sidewall rims can have this problem if there's a little buildup on the sidewalls. I'd suggest going around the rim with a ScotchBrite pad - I expect it will reduce and perhaps eliminate the effect.