Fits Vulcan Classic 1500 1600; Suzuki M95 Specially designed and manufactured to meet the original standard. Primary Function: This is a spring-loaded extender that holds an idler against the chain so it doesn't whip, come off the sprocket, or make annoying grinding noises during use. Engine Protection: When the throttle is suddenly closed at high speed, the automatic adjuster will pull back, causing the cam to timeout instantly, which can cause the valve to be bent or the engine to be damaged; this problem can be eliminated by installing the extender. The cam chain extender will remain constant regardless of engine operating conditions. Solid Structure: Our cam chain extender is made of T6 aluminum material, which is tough and stable, and it is colorfast and will not easily deform under the impact of external force. Direct replacement: This cam chain extender is fully compatible with the original unit and can be directly replaced. Although the whole installation process is not complicated, we still sincerely suggest that the operation should be carried out by professionals.