Forsaken Motorsport offers a linear linkage for the Kawasaki ZX-10 R/RR, developed using MotoSpec software.

This linkage keeps the progressive spring rate more linear, which provides more traction and better power transfer. The parts are machined in-house at Forsaken Motorsport in Canada from a block of aluminum using the Haas VM3.

The linkage comes with new bearings.
The original bolts, sleeves and seals can be reused.
The kit includes two "linkage levers" and one "arm".
The set is approximately 20% stiffer than the original linkage, which means there is less deformation under load.
The stock spring can be reused! but could be swapped out depending on rider preference.
The valve timing can also be adjusted to make the most of the flatter progressive rate.

This linkage is for a rider only!, no pillion!