27" wheels on a frame built for 700c

Posted on Thu 11th, February 2010

• #1

tom.g

Had a bit of a google and everything is asking whether 700c wheels can fit on a 27" frame, which might be either some help, or none, im not quite sure.
anywhoo, can 27" wheels fit on a frame that was built for 700c? Aware it probably depends on the frame, and theres a fair bit of a gap between the frame and the wheel when its got 700c's on, so hoping it'll be okay just wanted to check.
thanks
• #2

Cupcakes

diameter of a 27" rim is 630mm, for a 700c it's 622mm. So you need 4mm of clearance spare, assuming all else (tyre size etc) is equal.
• #3

taki

if you're using standard 27 x 1 1/4 tyres, the radius of the wheel including the tyre is 343mm i think. so measure from the dropout to the nearest point where the wheel might rub on the front and rear and see if it'll work.
• #4

tom.g

okay, thanks very much!
• #5

rive_gauche

..and so the wheel of fashion turns [sic]

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