shimano grx 810 11v sti disc linksProduct Description inspired by Gravel specialists The gives you more brake control on mixed terrain. The GRX BR RX810 brake caliper with Ice Technology ensures perfect heat distribution. In addition, there is the simple one way bleeding and the uncomplicated hose connection system. The design of the brake caliper is based on the flat mount construction, which has established itself in the Road bike sector over the past few years The Shimano GRX ST