From 1995 through 2003, the OEM rockers in the Desmoquattro motors had a tendency to flake due to a faulty hard chrome process. Improper valve lash settings can contribute to the problem. Replace your flaking desmoquattro rocker arms with these refurbished rockers. Our process includes stripping of the existing chrome, a stress relief bake, glass bead blast, polish, and a proprietary activation of the base material. Only then are the parts chrome plated to a specified thickness, achieving the maximum hardness of 68-72 Rockwell. They are then post baked for hydrogen embrittlement relief.
Replaces rockers in the 851, 888, 748, 916, 996, ST4, ST4S, S4R Monster.
You must send your old rockers in for exchange. I will not mail out fresh rockers prior to receiving yours.