Trinity Piston

The JRi Trinity piston was designed to be a highly tunable, multi-use piston that produces curves like those found in linear, digressive, and increased flow pistons. You can independently adjust the bleed on both sides of the piston - compression and rebound - by varying amounts when utilizing the 2 separate shim sealing surfaces. This piston features 8 pre-located bleed holes on each side ready to be drilled to the desired size. The inner face utilizes a 1.313-inch diameter shim, while the middle and outer sealing faces utilize 1.437-inch diameter and 1.562-inch diameter shims, respectively.