SHIMANO Tiagra ST-4720+BR-4770 rear brake

The all-new SHIMANO TIAGRA BR-4770 hydraulic disc brake caliper offers greater rider control in all conditions. With convenient ONE WAY BLEEDING and easy hose joint system, installation and adjustment are kept simple.The SHIMANO TIAGRA R4720 DUAL CONTROL LEVERS bring the all condition confidence of hydraulic disc brakes and refined ergonomics to the quick and intuitive shifting cyclists expect from SHIMANO TIAGRA. Features: - Integrated hydraulic brake and shifting lever - Convenient tool access - Simple wheel replacement - Easy and clean bleeding system - Greater rider control and confidence in all conditions - Simple set up and maintenance - Ergonomics cascaded from 105 - Greater reach adjust range - Smooth and effortless operation - Redesigned internal shifting unit - Greater rider comfort and control in all conditions - Quick and intuitive rear shifting operation - Same level of shifting operation as more high end road groupsets