SHIMANO
Shifter & Brake Set Shimano GRX ST-RX815/BR-RX810 Di2 Left, 2-speed
Shifter & Brake Set Shimano GRX ST-RX815/BR-RX810 Di2 Left, 2-speed
The Shimano GRX Di2 ST-RX815 + BR-RX810 is a left-hand 2-speed electronic shifting and hydraulic disc brake set designed for gravel, road and cyclocross bikes. It delivers precise Di2 front shifting and powerful, well-modulated braking performance on demanding terrain.
The raised hood shape, textured anti-slip surface and ergonomic finger notch enhance grip and control on rough surfaces and descents. Improved braking input performance and a higher lever pivot help reduce hand fatigue on long rides.
- Use: Gravel, Road, Cyclocross
- Group: GRX Di2
- Model: ST-RX815
- Type: Dual-Control (STI)
- Mount: Left
- Front speeds: 2-speed
- Reach adjustment: Yes, with tool
- Handlebar diameter: 23.8–24.2 mm
- Brake type: Hydraulic disc brake
- Brake caliper: BR-RX810-L
- Mount type: Flat-Mount
- Brake pads: L03A Resin with Fin
- Brake hose: SM-BH90-JK-SSR front 1000 mm (cuttable)
- One-way bleeding: Yes
- Brake fluid: Shimano mineral oil
- Recommended rotor: SM-RT64, SM-RT70, SM-RT800
- E-TUBE firmware update: Yes
- Remote switch compatible: Yes
- E-TUBE port: 2
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Estonia
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Finland
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Latvia
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Lithuania
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Shimano is a Japanese component manufacturer that since 1921 has been one of the world’s largest suppliers of bicycle drivetrains, brakes and cycling-specific parts. Shimano groupsets — from Tourney for city bikes to top-tier Dura-Ace — are found on virtually every serious bike brand. The company also makes fishing tackle and rowing components.