bolt-on installation that truly makes a difference

outlined here

Fits all our Big Mo's

Legal Compliance: By installing this system

rigorously tested

Manual Cam Chain Tensioner / RZR & Ranger - 900 & 1000 Category_Default Category/SLED/Ski-Doo/XP 600 Race Sled bolt-on installation that truly makesWe recommend this manual cam chain tensioner for every owner of a Polaris ProStar motor! The stock tensioner is hydraulic and is a known problem. Without the engine running or during startup, the stock cam chain tensioner has no tension and can allow your machine to jump time. This can cause major running issues and even motor failure. Protect your motor and install this manual tensioner today!