Shimano BR-R451 Rear Mid-Reach Road Caliper Black MFPN=PK-5 Adjustable Reach Yes Brake Caliper

Adjustable Reach Yes Brake Caliper Type Flat Mount Brake Lever Actuation Hydraulic Brake Lever Use Left Color Gray Hydraulic Hose Length 950 Adjustable Contact Point No Hydraulic Fluid Type DOT Rotor Included No Pad Compound Organic

} CNC machined aluminum dispenser with brass internals

Up to 60 hours run time

DT Swiss 350 hubs are smooth reliable and easy to service

Diameter 650B Brand Velocity Model A23 ISO 584 ID Width 18 Width OD 23 Profile 19

Shimano BR-R451 Rear Mid-Reach Road Caliper Black MFPN=PK-5 Adjustable Reach Yes Brake CaliperShimano 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