Shimano BR-R451 Rear Mid-Reach Road Caliper Silver CheckoutSpec= (TBL) Black - 800ml aero or round seat post

aero or round seat post with this quarter-turn mount

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

The forged aluminum lever features a reach adjust mechanism

Lightweight (less than 40g heavier than standard crankset)

Shimano BR-R451 Rear Mid-Reach Road Caliper Silver CheckoutSpec= (TBL) Black - 800ml aero or round seat postShimano 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