Bicycle Mechanics - tire measurement conversion

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View Full Version : tire measurement conversion


acorn54
08-13-09, 03:48 PM
i just got a 22 year old fuji that has tires that measure 27x1-1/8
what new tire would i replace it with in terms of measurements?


well biked
08-13-09, 04:18 PM
27 x 1 1/8 (630mm bead seat diameter with a 28mm wide tire) was a common tire size on road bikes during that time period. You will find that 27 x 1 1/4 (630-32) tires are much more common in the 27" size these days. Assuming the frame and fork have the clearance, 27 x 1 1/4 should work fine.

wmodavis
08-13-09, 06:39 PM
See this Sheldon Brown article for more than you really wanted to know about tire sizing.
http://sheldonbrown.com/tire-sizing.html