Re: Tubeless tires?
i agree with mart, tubeless tires were out long before the extra bump on the rim, which my theory is that its there to help center the tire on the rim.i do notice on older drop center type wheels, model A thru 48 ish, it seems the tire is fairly loose on the rim until its inflated. that extra bump would help to center it and probably make it seat and seal faster when inflating. just my thoughts, no data behind me
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