It has a built-in selector that can be adjusted to 3 stages of N(Normal), S (Sport) and R (Race).
It is also compatible with manufacturer overhauling.
Repair Parts
Lever [Complete] (110.C740.99)
Lever [Half] (110.C740.98)
Bleeder Bolt (105.3246.11)
Joint Set (110.3127.10)
Lever Pin (110.C740.07)
Micro Switch (110.4671.95)
Clamps (110.C740.88)