Guide Roller Slider, Chain Tension Adjuster Chain Guide Roller Slider Sun‑Proof Wear to Resistant for Upgrade Appearance for Relaxing Riding
- This chain tensioner automatically adjusts while you are riding via a very powerful torsion spring in which the tension is fully adjustable.
- This chain tension adjuster kit is applied for the use with most chain sizes.
- This chain tension adjuster is made of high quality material which is very durable.
- 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.
- Comes with pulley, bracket, nut, clip spring to make a whole tension adjuster kit for easy use.