Patent ID: 8511700

Claim:
A master device for a closed hydraulic system of handlebar-steered vehicles having a slave device and containing hydraulic fluid, the master device comprising: a basic body defining a pressure chamber in which is disposed the hydraulic fluid placed under pressure during actuation of the master device in order to actuate the slave device; a lever operable to actuate the master device by placing the hydraulic fluid under pressure in the pressure chamber; a thrust piece rotatably mounting the lever to the basic body, the lever: having a grip span defined by an angle between the lever and the thrust piece; and being pivotable relative to the thrust piece; a grip span adjusting device connected at least to the basic body and operable to adjust the grip span of the lever; and an adjusting device operable to adjust a spacing between the thrust piece and the pressure chamber to at least one of: adjust a pressure point of the lever; compensate for wear of a brake lining; and compensate for wear of a clutch lining.