GRX ST-RX815 Di2 Shifter delivers digital precision, slip-free grip, and customizable comfort for mixed-terrain riding
What Our Gearhead® Experts Are Saying:
"This shifter makes gravel adventures easy—electronics handle perfect shifting with gloves, and the grippy lever keeps my hand in place even on rough descents. You won’t find a better blend of comfort and performance for drop-bar off-roaders."
GRX ST-RX815 Di2 Shifter builds on Shimano’s gravel legacy with electronic shifts that always hit the mark, even in the thick of race or adventure. Redesigned levers feature anti-slip textures, a raised hood head, and a recessed finger notch to anchor your hand confidently over rocks and roots. Button layout makes shifting easy—even with bulky gloves—while programmable Di2 connectivity unlocks digital, synchronized front/rear shifts for a tailormade feel. Improved lever shape, higher brake lever axis, and better reach make every input more efficient, confident, and dialed for long, bumpy days.
Details
- Electronic shifter designed for gravel, all-road, and adventure riding
- Di2 system brings quick, programmable shifts for smooth terrain changes
- Raised hood, recessed finger notch, and anti-slip texture boost control
- Clear separation between shift buttons for accuracy with gloves
- Improved lever profile and higher pivot for fatigue-free braking
- Ergonomic shape and reach adjust fit all hand sizes and bars
- Better hand stability and braking confidence on technical surfaces
- Compatible with Shimano Di2 components and mixed surface drivetrains
- Item #SHIU19P
- Material
- aluminum
- Type
- ST-RX815
- Adjustability
- reach
- Claimed Weight
- 13.2oz (373g)
- Manufacturer Warranty
- 2 years