Shimano Tiagra ST-4720/BR-4770 Mechanical Shift/Hydraulic Brake Lever Caliper - Rear Flat Mount Finned Resin Pads BLK Rim Width (Internal)-28.5 Waterproofing: 10

Waterproofing: 10

Designed for use with 23mm inner width rim which provide more volume a larger footprint and better traction than a more narrow rim

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Shimano Tiagra ST-4720/BR-4770 Mechanical Shift/Hydraulic Brake Lever Caliper - Rear Flat Mount Finned Resin Pads BLK Rim Width (Internal)-28.5 Waterproofing: 10Shimano Tiagra ST 4720 BR 4770 Mechanical Shift Hydraulic Brake Lever and Caliper Rear Flat Mount Finned Resin Pads Black. The Shimano Tiagra ST 4720 hydraulic shift brake lever brings the all condition confidence and refined ergonomics of hydraulic disc brakes to the quick and intuitive shifting cyclists expect from Shimano Tiagra. 2x10 speed TECH SPECS Brake Lever Actuation Hydraulic Rotor Included No Brake Caliper Mount Flat Mount Brake Lever Use