Features: 1.Wide Application: The heavy duty motorcycle chain tensioner is a type of universal accessory, suitable for most motorcycles, Dirt Bike, ATV and so on to better meet your needs. 2.Powerful Function: Effectively prevent the chain from falling and slack, improve driving safety, wear resistance and durability, and greatly improve the lack of tires. 3.Waterproof Bearing: A waterproof bearing is installed on the movable joint to make the movement gap smaller and more durable, greatly bring you more convenience. 4.High Quality Materials: Highly wear resistant polyurethane wheel is ultra quiet, premium CNC aluminium alloy material is anti wear, anti rust and not easy to age. 5.Easy to Install: The screw (not included) installation design is faster, easier and safer, and the chain is automatically adjusted to avoid manual adjustment. Specification: Item Type: Motorcycle Chain Tensioner_x000D_ Material: CNC Aluminium Alloy + Polyurethane_x000D_ Wheel Length: Adjustable, lengthened by approx. 3.1cm/1.2in_x000D_ Installation Position: Motorcycle Chain_x000D_ Application: Universal for most motorcycles, dirt bike, ATV PackageList: 1 x_x000D_ _x000D_ Motorcycle Chain Tensioner