Keenso Bike Chain Roller Tensioner Tension Adjuster Guide Kit Roller Slider with Spring for Dirt Pit Mini Bike Motorcy other other other chain tensioner

- This chain tensioner automatically adjusts while you are riding via a very powerful torsion spring in which the tension is fully adjustable - The Chain Roller Tensioner comes with pulley, bracket, nut, clip spring to make a whole tension adjuster kit for easy use - This chain tension adjuster kit is applied for the use with most chain sizes, such as Dirt Pit, mini, Bike Moto, ATV, etc... - It is necessary for all serious riders. It ensures proper chain tension and alignment, and prevents the chain derailment, excess wearing of the sprocket and prolong chain's life - brand new and never used chain tension adjuster, made of high quality material which is very