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.
Greater rider control and confidence in all conditions Integrated hydraulic brake and shifting lever Simple set up and maintenance Convenient tool access Easy hose joint system (J-kit) Simple wheel replacement Easy and clean bleeding system ONE WAY BLEEDING