H / L speed compression adjustment
The high / low speed adjustment is made for your compression damping.
Please note that high and low speed refer to the damper speed, not the speed of the vehicle!
Low speed compression damping generates more stability, especially for the small bumps.
With the high speed compression adjustment you adjusts how the damping reacts on high impacts such as a landing after a jump.
The rebound adjustment is responsible for traction and stability.
When you have lots of small bumps you open the rebound more, if you need more stability you close this adjustment