The chain tensioner TO-S84 tool from XLC is a lightweight and comfortable way to help you replace your chain with ease. It acts as a chain tensioner, so there’s no need for you to stomp on the pedals to ensure your new chain link is tightened and suitable for all standard quick-release chains. This means it will work on all drivetrain speeds for various types of bikes, including city, trekking, mountain, road and race. As well as being an aid for fitting your chain, you can also use it to remove your quick link. Simply attach the two prongs to the quick link in your chain and pull them apart using the ergonomic grip. Chain maintenance has never been so easy.