Shimano GRX RX815 Di2 1x/2x Gravel Groupset

Engineered for precision gravel riding
This complete electronic drivetrain system combines Shimano’s GRX RX815 Di2 technology with hydraulic braking for seamless performance on mixed terrain. Ideal for adventure cyclists (road-to-gravel conversion kits available) seeking 11-speed reliability in wet or dusty conditions.

Core System Components
– Shifting System: Di2 ST-RX815 shifters (11-speed) + pre-bled BR-RX810 hydraulic disc brakes (flat mount)
– Drivetrain: Long-cage RD-RX815 derailleur (clutch mechanism) + HG800 11-34t cassette
– Power Management: Built-in BT-DN110A-7 battery (integrated mounting)

Key Advantages
✅ 30% faster shift response vs mechanical systems
✅ 20% reduced maintenance with sealed hydraulic lines
✅ Clutch derailleur prevents chain slap on technical descents

Customization Options
| Component | Included | Add-On Required |
|——————–|———-|——————|
| Crankset | No | SRAM X-Sync/ Shimano FC-M8000 |
| E-Tube Wiring | No | Bike frame-specific lengths |
| Chainring | No | 30-50t options (depending on frame clearance) |

Optimized For
– Gravel race circuits requiring instant gear response
– Mixed-surface endurance rides (50-200km/day)
– Disc brake-compatible framesets (160mm rotor max)

Technical Notes
Pre-assembled shift/brake levers include dual-mode compatibility: switch between road-style drop bars or flat-bar MTB configurations using Shimano’s E-Tube Project software. System requires separate installation kit (part #EN-RX815KIT) for complete functionality.

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