Shimano Shimano GRX ST-RX815 Left 2 Speed Di2 Hydraulic Brakeset with Caliper

Shimano GRX ST-RX815 Left 2 Speed Di2 Hydraulic Brakeset with Caliper

Shimano brings Di2 to the gravel scene for precise, electronic shifts
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Please note that components are subject to change and may not be exactly as pictured.


The SHIMANO GRX DUAL CONTROL LEVER delivers light and responsive shifting for mixed-terrain riding.

The ergonomic shifter design improves comfort and the textured, anti-slip brake lever increases control on bumpy terrain.With a low-profile Flat Mount design, the SHIMANO GRX BR-RX810 hydraulic disc brakes provide greater control for mixed-terrain riding.

Specifications (Lever)
  • Gravel inspired lever and bracket ergonomics
  • Anti-slip brake lever
  • Greater mixed-terrain control
  • Same light shifting operation as top tier road systems
Specifications (Caliper)
  • Excellent heat dissipation
  • Flat mount and anti-mud specification
  • Convenient tool access
  • Simple wheel replacement
  • Easy and clean bleeding system

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