Fits Lockheed LD19 calipers as commonly found on Formula Ford 1600 cars (AP CP2505 and CP3696).
11 Compound improves on both the bite and the release of the popular 01 compound. The very high, very flat torque curve allows easy pedal modulation with a fast, smooth release. Torque rises very little with temperature, which makes these pads very predictable. Easy on rotors and long-wearing. The 11 compound has even less tendency to lock at the end of a stop. Its controlability makes it ideal in tricky low-grip situations (low downforce, hard spec tires, greasy track surface). All-purpose pad for a variety of racing applications.
90 Compound was developed with moderate torque that stays consistent as temperature rises for easier modulation. Used by several race driving schools including Bob Bondurant, Derek Daly, and Jim Russell because of its forgiving nature and long life. Performance Friction has phased out the 90 Compound. When current stock is depleted, this compound will no longer be available.