Any fat bike can take 29" rims and tyres, they are about the same diameter so the geometry stays roughly as the frame designer intended, and obviously there's no problem with clearance if you put a 29x2.4 where there's room for a 26x4
@gbj_tester started
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Any fat bike can take 29" rims and tyres, they are about the same diameter so the geometry stays roughly as the frame designer intended, and obviously there's no problem with clearance if you put a 29x2.4 where there's room for a 26x4