Key benefits Reliable chain tension and smooth operation in offroad riding This chain roller slider tensioner adjuster pulley wheel helps maintain proper chain tension and provides smooth rolling in rugged terrain. Durable and long lasting Constructed from engineering plastic material for strength and durability in harsh offroad conditions. Flexible fit for multiple chain sizes Inner diameters available in 8 mm and 10 mm, allowing easy adjustment to fit various chains. Compact and easy to install Approximately 33 mm x 36 mm x 36 mm in size, lightweight and designed for straightforward installation and seamless integration into your dirt bike chain system. Specifications and compatibility Material: engineering plastic Inner diameter options: 8 mm or 10 mm Dimensions: about 33 mm x 36 mm x 36 mm Function: chain roller slider tensioner adjuster pulley wheel Application: suitable for offroad motorcycle modification and dirt bike chain systems requiring a compact tensioning solution Use scenarios Offroad motorcycle modification Use when upgrading your dirt bike to improve chain tensioning on rough trails, enhancing reliability and chain alignment. Dirt bike maintenance and replacement or upgrade an existing tensioner to a compact, easytoinstall option that fits a range of chain sizes. Custom builds and varied chain configurations Ideal for projects or builds that require switching between different chain sizes, thanks to the 8 mm and 10 mm inner diameter options.