Hydraulic Disc Brake Dual Control Lever

Hydraulic Disc Brake Dual Control Lever

GRX ST-RX815

Shimano GRX supports disc brakes only and this makes sense considering the improved tyre clearance and better performance under rough conditions. Its ergonomics (shape) were redesigned to improve comfort and control on bumpy terrain (it has anti-slip ridges on the hood).

Each lever has 2 E-tube ports. It does not have a dedicated sprint shifter port, so you cannot use the SW-R610 with these levers.
The weight of 373g is for a pair of levers, not a single lever.
The clamp band inner diameter is 23.8-24.2mm.

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