The Shimano GRX Di2 ST-RX825 left brake lever is the brake-only variant of the RX825 control lever, intended for 1x GRX Di2 drivetrains where left-side shifting is not required. The hood profile is shaped for flared gravel handlebars, with raised hoods, a ribbed texture, and an anti-slip coating on the lever blade for secure grip in varied conditions.
The lever retains the gravel-specific third button position found across the RX825 lineup, and remains compatible with Shimano's satellite shifter options for riders who want additional control points. A CR1632 coin cell battery powers the unit with an estimated 3 to 4 years of life between changes.
Quick Facts
| Feature |
Specification |
| Compatibility |
Shimano GRX Di2 12-speed (1x) |
| Battery |
CR1632 |
| Battery Life |
3 to 4 years |