Shifter Shimano GRX Di2 ST-RX815 2-speed

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.Raised hood head prevents hand misalignment and slippageRecessed finger notch prevents upward slippingAnti-slip texture and brake lever coatingImproved braking input performanceHigher brake lever axis and curved brake leverImproved grip and confidence on choppy surfaces and descentsHigher braking efficiency reduces fatigue on long ridesWeight: 373 g/pairRRemote switch E-tube port (pcs): 2Firmware update by E-TUBE Project Shift Lever Specifications: Multiple input HoldSHIMANO Mineral OilFree stroke adjust Recommended brake caliper: BR-RX810Servo wave mechanism Recommended brake hose (Kit): SM-BH90-JK-SSRFunnel bleeding Hose joint: StraightTooled reach adjust YesClamp band inner diameter: 23.8-24.2 mmFor 2x11-speed drivetrain