• Trying out some 650b wheels on my Bowman Pilgrims Disc frame. Clearances are quite tight but measuring the gap between the rear stays I should be able to get a 40mm tyre in there. Bought some Conti Terra Trails which have come up a bit big at about 41mm but when I drop the wheel in the tyre is touching the stays but only on the drive side. There should be enough room for clearance but I can't work out why the wheel is not centred properly. Could I use a spacer to compensate or does the wheel need re-dishing?


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  • With the bike standing on the floor, open and then close the rear QR to check that the axle is fully seated into both dropouts.

    Now if your rim is still sitting off centre then either
    a) something is wrong with your frame, or
    b) you must re-dish the wheel.

    You can test the frame by grabbing a different, healthy wheel (if you have one) and seeing if that sits straight in the frame.

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