Tomantery Guide Roller Slider, Bike Chain Tensioner Personalized Chain Guide Roller Slider for Outdoor for Comfortable Ride
- This chain tensioner automatically adjusts while you are riding via a very powerful torsion spring in which the tension is fully adjustable.
- Comes with pulley, bracket, nut, clip spring to make a whole tension adjuster kit for easy use.
- This chain tension adjuster is made of high quality material which is very durable.
- This chain tension adjuster kit is applied for the use with most chain sizes.
- 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.