Though the compression, high-speed compression and rebound damping are all pretty generic, the standout feature is a bottom out control. With a 24-position (all of Fox's clichers have 24-positions) adjustment, it works on the very end of the stroke, near the last inch of travel and had a big effect on the stroke of the shock there. It takes the force and dissapates it through the oil and through heat instead of storing the energy in the shock bumper, making it difficult for the shock's rebound damping to control. This B.O.C. is built into the top of the shock body and works in conjunction with a secondary piston on top of the shock shaft. As the shock gets close to bottoming it closes off the cylinder and the oil must pass through the adjuster or the blow off valve.