Transform your existing RockShox Pike, Lyrik or Yari suspension fork into the ultimate trail fork.
5 and 29 Pike Includes Air Bump Stop, Lower Plunger Rod, retaining ring and travel indicator By using coil springs, you can eliminate the constant maintenance required to keep your fork running optimally! PUSH Industries ACS3 Coil Component Kit RockShox. Reduced friction for smoother overall fork performance Air Bump Stop cartridge technology to control the bigger hits towards the end of the travel Fits 2014-2017 RockShox Boost 27.The ACS3 coil conversion kit combines small bump sensitivity, traction, and mid stroke support of a coil with the big hit performance of an air spring.5 Pike/2018-Current 27.