Disc brake set front Shimano GRX Di2 ST/BR-RX815

SHIMANO GRX - Flat Mount - Hydraulic Disc Brake - Brake Caliper BR-RX815. With a low-profile Flat Mount design, hydraulic disc brakes provide greater control for mixed terrain riding. SHIMANO GRX - DI2 - Hydraulic Disc Brake - DUAL CONTROL LEVER - 2x11-speed. The SHIMANO GRX DI2 DUAL CONTROL LEVER delivers light and responsive shifting for mixed-terrain riding. The ergonomic shifter design improves comfort and the textured, anti-slip brake lever increases control on bumpy terrain. The Di2 version offers the digital precision of SHIMANO electronic shifting and synchronized shifting. Weight: 373 g/pairShifter type: DUAL CONTROL LEVERRemote switch E-tube port (pcs): 2Firmware update by E-TUBE Project Multiple input HoldSHIMANO Mineral OilFree stroke adjust Servo wave mechanism Recommended brake hose (Kit): SM-BH90-JK-SSRFunnel bleeding Hose joint: StraightTooled reach adjustClamp band inner diameter:: 23.8-24.2 mm