Simple replacement of the original compression unit, no special adaptation needed
100% sealed system with an Internal Floating Piston (IFP)
3 independent compression circuits (low-speed comp externally adjustable via 35 clicks, mid-speed, and high-speed are set internally)
Provides improved grip, more comfort, and better control
The kit includes 250 ml of RSP fork oil and a valving kit for fine-tuning the compression characteristics
Low-speed compression manages the overall balance of the bike in normal riding conditions, preventing excessive diving under braking or when maneuvering the bike at slower speed.
Mid-speed compression acts to control forces induced by more aggressive weight transfers, such as when cornering in berms or picking your way through a rock garden – it acts almost as a gas pedal for your bike, allowing it to generate speed as opposed to bogging down in rougher terrain.
High-speed compression damping adds control to the harshest and most violent events, such as landing big drops or hitting square edges at speed. High-speed compression prevents harsh bottom-outs and keeps the last part of your suspension’s travel available for when it’s really needed
RX820/610 series: 12-speed shifting with two single chainring and two double chainring options with mechanical and Di2 variants
RX810 series: 11-speed Ultegra level (R8000 series equivalent) with mechanical and Di2 variants
RX600 series: 11-speed 105 level
RX400 series: 10-speed Tiagra level
Shimano GRX
Cassette: 10-, 11- or 12-speed
Largest sprocket: 51t
Shifting: Mechanical/electronic
Brakes: Hydraulic disc only
The GRX groupset’s rear derailleurs are also unique in accommodating very wide cassettes up to a maximum 11-51 for the 1×12-speed variant, although only up to 42 teeth for 1×11-speed.