Mounts a single brake or clutch master cylinder in a forward position outside the firewall, Lightweight aluminum frame, with a high strength reinforced I-Beam style forged 7:1 ratio pedal arm, The non-skid waffled pedal pad can be laterally adjusted for driver preference or clearance as necessary, Wilwood high-volume aluminum master cylinders have the highest fluid capacity of any integral reservoir design, .875" Bore - 7/8".