Product details:

Ramp Control Cartridge: Designed for: Current-gen Rock Shox Solo-air (32mm and 35mm) and Fox Float (32, 34, 36, and 40) forks. Adds speed-sensitive ending-stroke control and bottom-out force adjustability to compatible Rock Shox and Fox forks. Just 55 g! Lighter than most air-spring assemblies with more than two tokens. Isolate and tune bottom-out with minimal changes to initial and mid-stroke. Bring your tuning to the trail and out of the workshop! Easy installation requires little time and few tools - no lower-leg removal required!