SHIMANO GRX DI2 Hydraulic Disc Brake DUAL CONTROL LEVER ST-RX815-L. The SHIMANO GRX DI2 DUAL CONTROL LEVER provides light and responsive shifting on varied terrain. The ergonomic shape of the shift lever increases comfort, and the anti-slip texture on the brake lever offers more control on bumpy terrain. The Di2 version offers the digital precision of SHIMANO electronic shifting and synchronized shifting. Features:

• Improved grip and confidence on choppy surfaces and descents
• Raised hood keeps your hands securely in place and prevents slipping
• Recessed finger indent prevents upward slipping
• Anti-slip texture and coating on brake lever
• Higher braking efficiency reduces fatigue on long rides
• Improved brake input performance
• Higher brake lever pivot axis and curved brake lever

Specifications:

• Model: ST-RX815-R
• Series: GRX DI2
• Color: Group Color
• Average weight: 373 grams per pair
• Shifter type: DUAL CONTROL LEVER
• Remote shifter: Yes
• Rear speeds: 11
• Rear derailleur type interchangeable: ROAD 11 speed
• Brake hose (kit): SM-BH90-JK-SSR
• Brake lever hose joint: Straight
• Brake hose color (kit): Black
• Recommended brake caliper: BR-RX810
• Recommended oil: SHIMANO mineral oil
• Brake lever adjustable: Yes
• Brake lever clamp band: 23.8-24.2 mm
• Brake lever funnel bleeding: Yes
• Brake lever free stroke adjustment: Yes
• Brake lever SERVO WAVE: Yes
• Di2 wired connection: Yes
• Firmware update by E-TUBE PROJECT
• SD50 ports: 2
• SD300 port: none
• SD50 connector: none
• SD300 connector: none
• Port for SD50 sprinter shifter remote: none
• Port for SD300 satellite shifter: none