Shimano BR-R451 Rear Mid-Reach Road Caliper Silver CheckoutSpec= (TBL) Black - 800ml 5" Hub Drilling 32 Rim

5" Hub Drilling 32 Rim Material Alloy Tire Type Clincher

Color Black Defined Color Black Flat Protection Tread ISO Diameter 559 / 26" MTN ISO Width (mm) 60 Labeled Size 26 x 2

aero or round seat post with this quarter-turn mount

The forged aluminum lever features a reach adjust mechanism

Shimano BR-R451 Rear Mid-Reach Road Caliper Silver CheckoutSpec= (TBL) Black - 800ml 5" Hub Drilling 32 RimShimano BR R451 Road Brake CalipersCompatible with STI and brake levers that are Super SLR enabled (e. g. Dura Ace Di2 7970 Dura Ace 7900 Ultegra Di2 6770 Ultegra 6700 105 5700 Tiagra 4600) Light action and accurate brake power Adjustable toe in brake shoes Use of these calipers with standard SLR enabled STI and brake levers results in a "mushy" brake response Brake Lever Actuation Short Pull Super SLR Pad Type Cartridge Brake Position Rear Brake