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Can wheel hubs be misaligned, not the RD?

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Can wheel hubs be misaligned, not the RD?

Old 05-03-21, 08:45 AM
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Originally Posted by smashndash View Post
I'll respond to OP. The hub doesn't even need to be misaligned. If you have a hub that uses cups + cones or thread-on end caps, it can be loose. If it's loose, the wheel can wobble when pushed laterally. If it wobbles, I believe this will lead to a poor alignment of the RD hanger. Super worn-out bearings will probably do the same even in a press-fit hub.
You donít push on the wheel when you do a derailer hanger alignment. The feeler gauge is only supposed to touch the rim. It doesnít push against it.

As to press fit bearings, those donít develop side-to-side play. The bearings are held in a channel which wouldnít allow the bearing to move that direction.
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