<br>ForSpring Idler Pulley Chain Tensioner, with 2 Bolts, With Bearing <br>Package Include: 1 x Chain Tensioner Kit<br>Give you a very consistent tension on the chain. Very easy to adjust. Arch design for performance and easy of use. Can be used with all motors including 2-stroke 48cc and 66cc/80cc plus 4-stroke 49cc engines.<br>Easy to adjust <br>Heavy Duty Metal <br>Reduces stress on the chain<br>Maintains consistent tension<br>Maximizes performance <br>