Shimano GRX815 Di2 11-Speed Hydraulic Brake Right Shifter for Drop Bars
$110.97
Description
Shimano GRX ST-RX815 Di2 Shift/Brake Lever
Precision Control for Gravel Adventures
Master rugged terrain with Shimano’s electronic shifting technology engineered specifically for demanding gravel riding. The GRX ST-RX815 Di2 lever combines lightning-fast gear changes with exceptional braking confidence – whether navigating loose gravel descents or enduring marathon bikepacking journeys.
Engineered for Dominance
- Secure Grip System: Raised hood contour prevents hand slippage during vibration-heavy rides while recessed finger notches lock your grip during aggressive braking
- Optimized Braking Dynamics: Higher pivot placement + ergonomic curved lever design boosts stopping power by 23% (Shimano lab tests), reducing hand fatigue on extended alpine descents
- Personalized Fit: Tool-free reach adjustment accommodates all hand sizes – from petite female riders to larger male hands – ensuring comfort during 8+ hour endurance events
- All-Weather Reliability: Diamond-textured surfaces + hydrophobic coating maintain control in rain/mud
Technical Excellence
| Feature | Advantage Over Competitors |
|---|---|
| Di2 Shifting | Instantaneous shifts vs mechanical lag |
| Mineral Oil Hydraulics | Consistent performance across temperature extremes |
| Flat Mount Design | Cleaner integration on modern gravel bikes |
Complete Specs
– Drivetrain Compatibility: 11-speed Shimano Road Di2
– Weight: 414g
– Hose Length: 1700mm (ideal for full-frame routing)
– Color: Stealth Black
– Adjustable Reach: Yes
Ideal For
Gravel racers tackling Unbound XL, bikepackers navigating Patagonian trails, or all-season commuters needing dependable performance in variable conditions. Rotor sold separately for custom setup flexibility.
Experience transformed control where pavement ends – shift faster, brake harder, ride longer.
