MRP has released new Ramp Control cartridges for Fox 38 and RockShox Zeb enduro forks. Ramp Control cartridges had previously been available for Fox 32, 34, 36, and 40 forks and all the existing RockShox models before the ZEB. The addition of Ramp Control products for long-travel enduro bikes means that now the shreddy trail bike tinkerers will have more options for adjusting end-stroke ramp-up on the fly.
The Ramp Control cartridge replaces a fork’s top cap and volume spacers. It controls the fork’s progression not by adjusting air volume, as the token system does, but by changing the preload, requiring more force to push air into the cartridge as the progression increases.
The cartridge adjustments do not affect air volume so making changes mid-ride is very feasible because the adjustments do not affect air pressure and therefore sag point.
Mike Levy reviewed the first MRP Ramp Control cartridges
when they were released in 2017: