direct mount road brake s900As SRAM's first direct mount road brake, the S 900 does more than just complete SRAM's road brake product line. It has a design that delivers great power and superior feel. The design reduces what engineers call splay force, sending energy into the brake instead of the frame and fork. This results in a more efficient transfer of energy from lever to rim, making for solid modulation and a snappy return. The brake provides clearance for up to 28c tires