Join Date: Sep 2001
Bikes: Peugeot Hybrid, Minelli Hybrid
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Measure the tire you have now. If it is a 23 that should be the width in mm, but this is not always exactly true. See how many popsical sticks you can fit between the tire and fork/frame both at the top and the sides of the wheels, for both the front and back wheels. The difference between a 23 and 28 is 5 mm at the top and 2.5 mm at the sides.