Features: 1.This chain tensioner automatically adjusts while you are riding via a very powerful torsion spring in which the tension is fully adjustable 2.Comes with pulley, bracket, nut, clip spring to make a whole tension adjuster kit for easy use 3.This chain tension adjuster is made of high quality material which is very durable 4.This chain tension adjuster kit is applied for the use with most chain sizes 5.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 Specification: Features: _x000D_ This chain tensioner automatically adjusts while you are riding via a very powerful torsion spring in which the tension is fully adjustable. _x000D_ Comes with pulley, bracket, nut, clip spring to make a whole tension adjuster kit for easy use. _x000D_ This chain tension adjuster is made of high quality material which is very durable. _x000D_ This chain tension adjuster kit is applied for the use with most chain sizes. _x000D_ 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. _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Condition: 100% new _x000D_ Material: Metal, Plastic_x000D_ Color: As Picture Shown _x000D_ Size: As Picture Shown _x000D_ Package Weight: approx. 110g_x000D_ Compatible With: Fit for most of Dirt Pit, Motorcycle Bike, ATV, etc _x000D_ _x000D_ _x000D_ Package Included:_x000D_ 1 x Chain Tension Adjuster(Includes pulley bracket and nut)_x000D_ 1 x Clip Spring _x000D_ _x000D_ _x000D_ Notes: _x000D_ 1. These do not fit all vehicles, so please check the size and picture of this item with your old one and if yours look different they probably won't fit. _x000D_ 2. It is easy to install, but professional installation is highly recommended. PackageList: