Ride a combination of terrain?. This is the choice of the pros. Options: 29 x 2.6"/ 29x2.35"/ 29x2.25" or 26 x 2.1". Race Face Ride XC 1" Riser Handlebar 31.8 x 740mm / 35mm x 760mm MTB Riser Bar. Alternating center-ridge tread for low rolling resistance.
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