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Old 01-16-21, 12:19 AM
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tyw214
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Originally Posted by Andrew R Stewart
If some parts need to be less then tightly secured for the system to work well then something is wrong, and is continued to be used like that then don't be surprised if in the future you have big issues.

There are a few possible issues. From something wrong with cassette mounting/spacing on the freehub, something wrong with it's locknut, to something wrong with the freehub/hub bearings to something else all together.

Can you tighten the through axle and see and contact or rubbing about the moving parts (cogs, freehub, frame, other)? Could some other rub be happening (brake, rim, tire) due to improper wheel install or a cocked off center brake? I am not sure how to fix that.

It's hard to assess what we can't see but these are a few starting points for you to do so. Andy
There is no brake/rim/tire because it's on a direct drive trainer.
As to what happens, basically when tighten the thru axle, the XDR hub i guess is too tightly pressed against the drop out, so that it is not free enough to pedal backwards.
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