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Giant sent out a service bulletin early this year or late last year stating that the new 2015 Propel brakes aren't compatible with 25mm tires. Obviously that depends on whether or not it's a true 25, but I've personally seen that GP4000s and Pro 4's definitely don't fit. The Fourier brakes do clear 25's, and are a superior brake.
 
1 - 1 of 11 Posts