All The Six Fifty Bees Thread! (650b, 27.5 etc.).

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uphilldowndale

Forgive me if this has been asked but I'm struggling to find any info online...

650b wheels in a frame designed for 27" wheels using loooong drop calipers. Can it be done?? Anyone here done it? I have a very old frame I'd like to squeeze some nice tires into.

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ElGato in reply to @uphilldowndale

27"=630mm wheel diameter minus 650B=584mm gives you 46mm, divided by 2=23mm. So check the drop on the current calipers you've got (if any) for 27" wheels and add 23mm. I reckon the drop would be too much.
You would be better off with a frame built for 700c or the old 26 X 1 1/4 for a conversion.

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uphilldowndale in reply to @ElGato

Thanks... Yep thats what I'm thinking. I will be able to pit 700C in there with little issue. I think the extra drop is like 6mm or something. The desire for larger tires is strong though... If only there were a size between 700 and 650...

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