MRP Ramp Control Cartridge Model F - For Rock Shox Zeb 2020+ 27.5"/29" Accessory Mount Diameter-24 There is no difference in

There is no difference in performance or features

ABS-1 Pro with threaded presta-only chuck

Flat forward platform allows ease of movement

minimal seams reduce hot spots

MRP Ramp Control Cartridge Model F - For Rock Shox Zeb 2020+ 27.5"/29" Accessory Mount Diameter-24 There is no difference inRamp control adds speed sensitive ending stroke bottom out adjustability to forks. At high shaft speeds the cartridge it mimics the addition of volume reducing spacers in the fork. At low shaft speeds it allows the fork to be more active. Adds speed sensitive ending stroke control and bottom out force adjustability Isolate and tune bottom out with minimal changes to initial and mid stroke Easily change tune for different trails without tools Model