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Apr 2, 2018 at 16:14 comment added David Richerby Obvious... but wrong, sorry. 700mm is the nominal diameter of the tyre, not the wheel. These days, you only tend to find 700C but 700A, 700B and 700C all had different rim diameters so that different-sized tyres would take the total diameter to 700mm.
Apr 2, 2018 at 14:21 comment added Argenti Apparatus The rim diameter of a 700c wheel is actually slightly smaller than that of a '27inch'. 700c bead diameter is 622mm whereas 27" bead diameter is 630mm.
Apr 2, 2018 at 13:57 review Late answers
Apr 2, 2018 at 16:12
Apr 2, 2018 at 13:42 review First posts
Apr 2, 2018 at 14:22
Apr 2, 2018 at 13:41 history answered Leonard Heasman CC BY-SA 3.0