That's 559 to 584. 25mm. Not much difference. What do you expect to gain?
Lots more tire choices in 559, at least in the States. With discs, no brake problems with a conversion, of course.
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Bacchetta Giro A20, RANS V-Rex, RANS Screamer
Last edited by JanMM; 05-08-14 at 06:34 PM.