Moutain bike tires



dabac

Well-Known Member
Sep 16, 2003
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That will be just fine. Tubes are generally intended for a range of tire sizes, and there's no guarantee that a tube labeled right would actually be any wider.
If it's kinda narrow, it'll stretch a bit more. Become a little thinner. It'll lose air a tiny bit faster and become a tiny bit easier to puncture.