a method of varying a rest position of a one - piece lever in a hydraulic brake system . the hydraulic brake system comprises a master cylinder including a cylinder and a port , a piston received in the cylinder , the piston having a radial seal between cylinder and the piston , the piston being movable within the cylinder by a one - piece lever operatively associated therewith to selectively pressurize hydraulic fluid within the cylinder by closing the port . the hydraulic brake system further comprises a caliper in fluid communication with the master cylinder , the caliper having a pair of brake pads operatively associated with the disc received therebetween . the caliper is actuated by movement of the one - piece lever in an arc between a rest position and an engagement point with the pads in engagement with the disc . the length of the arc is variable by movement of the engagement point relative to the rest position along the arc . the method of varying the rest position comprises varying a rest position of the one - piece lever and maintaining the length of the arc as the rest position of the one - piece lever is varied .