Walker Evans Shocks are simply the best quality, durable, lightweight, and highest performing shock available. Normally only made for off road competition trucks, Walker Evans and Polaris together exclusively designed these kits for the demands of all weather high performance snowmobile riding. They are lightweight and feature race proven durability and hand built quality. Each shock features treu-compression and is rebound controlled. It?s turning valve works in coordination with valve stack for infinite adjustments. Other features include lightweight aluminum body construction and remote reservoirs that provide excellent cooling.