SHIMANO
Shift/Brake Lever Shimano GRX ST-RX610 Left, 2-speed
Shift/Brake Lever Shimano GRX ST-RX610 Left, 2-speed
The Shimano GRX ST-RX610 is a left-hand 2-speed STI Dual Control lever developed specifically for gravel and cyclocross riding, combining precise shifting and powerful hydraulic braking in one ergonomic unit. One of the key demands of gravel riders is a reliable braking system with ample power reserve – the ST-RX610 delivers excellent braking performance and modulation to maintain control on steep, technical or unexpected descents.
The gravel-inspired lever shape and bracket ergonomics ensure a secure grip on rough terrain. A textured, anti-slip brake lever surface enhances safety in wet and dusty conditions. Shifting performance matches that of Shimano’s high-end road systems, providing light, smooth and responsive front shifting in every situation.
- Application: Gravel, Cyclocross
- Group: Shimano GRX
- Model: ST-RX610-L
- Type: Dual-Control (STI)
- Mount: Left
- Front speeds: 2-speed
- Optical gear display: No
- Reach adjustment: Yes, with tool
- Handlebar diameter: 23.8 mm / 24.2 mm
- Cable port: Straight
- Brake type: Hydraulic disc brake
- Recommended hose: SM-BH90-JK-SS
- Recommended caliper: BR-RX820 / BR-RX400
- Recommended rotor: SM-RT800 / SM-RT70 / SM-RT64
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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.