Shimano GRX ST/BL-RX810 Hydraulic Disc Brake/Shift Levers (Black) (Left) (Brake Only) (No Calipers)

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The Shimano GRX ST-RX810 hydraulic shift/brake lever provides greater control on mixed terrain.


  • Gravel inspired Dual Control shift/brake lever and bracket ergonomics
  • Anti-slip brake lever
  • Same light shifting operation as top tier systems
  • Tooled reach adjust allows for lever to be adjusted to fit multiple hand sizes and riding preferences
  • Left lever options include: brake only, dropper post remote, or 2x shifter

Shifter Style: Lever (Road)
Speed: 1x 11 Speed, 2 x 11 Speed
Derailleur Compatibility: Shimano Road (11 Speed)
Shift Mechanism: Cable Actuated
Adjustable Reach: Yes
Brake Type: Hydraulic
Brake Fluid: Mineral Oil
Color: Black
Weight: 286g (Right Shifter)

This product was added to our catalog on October 4, 2019

Noah Holmes Foster
Verified Owner
Thursday, Dec 15 2022 (about a year ago)
Shimano GRX ST/BL-RX810 Hydraulic Disc Brake/Shift Levers (Black) (Right) (11 Speed)
In terms of functionality, this lever is a 5. Shifting is crisp (I paired with a RD-RX812 and a 11-40 cassette), and braking feel is solid. Getting used to the bleeding procedure takes some time, but you'll be fine if you watch the Park Tool video as you do it. It's also great to be able to adjust reach and free stroke.

Shimano shifters have gotten stupid expensive, but you get what you pay for, I guess.