My friend just put a new hub on and as I fitted the wheel I realised it’s uneven. He currently is missing a derailleur hanger and I presumed it could be something to do with that. Has anyone got any advice? I think he may have had this problem as he has a significant mark in the frame.
What should I do in this situation?
byu/Xixskillz inbikewrench
by Xixskillz
10 Comments
Dished wrong?
Ideally you would redish the wheel. If you don’t have a truing stand and dishing tool, then put a smaller tire on.
Loosen all the spokes on the side that’s hitting by a half turn then tighten a half turn on the opposite side and repeat until the rim is centered and then retrue it
It’s likely that the dish (centering) if the wheel is off. If you have a spoke wrench and an hour, you can fix that.
Using the spoke wrench, loosen the left/non-drive spokes a full turn (turn nipple clockwise to loosen). Then, tighten the drive side spokes a full turn (turn nipple counterclockwise). Evaluate, and repeat until you have about 6mm clearance to either side. The wheel may need some minor truing after this, but it should be rideable.
Your wheel isn’t ‘dished’ properly. thats where you both sides of the rim with respect to the axle and make sure the wheel is aligned in a way so as to be centered. The RD has nothing to do with it.
What your friend needs to do is de-tension the wheel, then dish it properly with a dishing tool or using the frame (youtube has tutorials), and then tighten/true/dish until the spoke tensions are to spec and the wheel is true.
If it’s a rebuilt wheel, it’s not dished correctly.
Also, it looks like one of your chainstays has been worn by wheel rub, is there damage there?
You can use spacing nut on one side and it should be fixed
It’s been dished incorrectly. It needs to be re-laced with the proper offset for the rim. I couldn’t see clearly. Is it a fixie with a sprocket on either side?
If it is, then the rim needs to be centered on the hub.
Either way, the rim is not positioned properly with respect to the hub.
Wheel needs to be dished. If you don’t know how to true and tension a wheel, I’d leave it to a bike shop.
I have the same issue with my back wheel although not as bad. The non-drive side of the wheel is about 2mm closer to the stay. In my case I think it might be due to a slightly bent stay after crashing.