Disc brake caliper front Shimano GRX BR-RX810

With a low-profile Flat Mount design, the SHIMANO GRX BR-RX810 hydraulic disc brakes provide greater control for mixed terrain riding. Excellent heat dissipation Flat mount and anti-mud specification Convenient tool access Simple wheel replacement Easy and clean bleeding system Never hesitate to tackle rough surfaces Simple set up and maintenance ONE WAY BLEEDING was developed for quick and easy prevention of air in our hydraulic system. We have streamlined the oil route throughout the system to prevent air bubbles from being captured in the system. One way oil routing plus a funnel tool with mineral oil provides an easy and clean bleeding system.