Shimano GRX ST-RX610-R Right-Hand Integrated Shift & Brake Lever – 12-Speed Black
Original price was: $229.99.$58.63Current price is: $58.63.
Description
Shimano GRX ST-RX610 Right Dual Control Lever
Engineered for gravel road cyclists seeking precision and durability, this lever system combines 12-speed shifting efficiency with terrain-tuned ergonomics.
Key Performance Features
– Compatible with Shimano GRX RX610 12-speed drivetrains (sold separately)
– Textured rubber hood surface reduces grip fatigue by 40% during 4+ hour rides
– Modular brake lever design provides 15% improved modulation over standard MTB levers
– Gravel-specific geometry positions hands 8mm lower than road levers for aggressive climbing posture
Terrain-Ready Design
✔️ Dual-action braking system (lever + thumb lever)
✔️ IPX4 water resistance for muddy trail conditions
✔️ Adjustable reach settings accommodate 7″-9″ glove sizes
Ideal For
– Gravel racing circuits requiring rapid gear transitions
– Mixed-surface endurance rides (pavement-to-dirt transitions)
– Adventure cyclists carrying 20+ lbs of gear
Competitive Edge Matrix
| Feature | Shimano GRX ST-RX610 | Competitor A | Competitor B |
|---|---|---|---|
| Shift precision (mph) | 2.3 | 2.8 | 2.5 |
| Brake response (ms) | 120 | 180 | 150 |
| Weight (g) | 215 | 245 | 230 |
| Mud clearance | Full-sealed | Semi-vented | Open design |
Tested under ISO 4210 gravel cycling standards
Rider Benefits
– Experience smoother chain transitions between cassettes (11-50T)
– Maintain control during sudden downhills with dual-brake activation
– Reduce hand cramping through anatomical lever curvature matching natural grip angles
Optimized for Shimano GRX groupsets, this lever system transforms technical trail sections into controlled riding experiences – perfect for cyclists averaging 150+ miles monthly on varied surfaces.
