Bike Single Speed Chain Tensioner Roller for BMX Fixie Bike Single Speed Bicycle, Black

About this item Material The bicycle chain tensioner is made of high-strength aluminum alloy and POM material, wear-resistant and anti-corrosion. Product Features This set of bike chain roller pulley tensioner can ensure proper tension and alignment of the chain, make the chain move smoothly and prevent the chain from derailing, excessive wear of the sprocket, and prolong the life of the chain. If the chain is not properly tensioned and it can lose or break. Eventually the side cover and stator plate will be damaged. Just this mini bike chain roller can make your chain more durable. Easy to install Includes simple installation tools. The chain tightener is easy to install. Step 1: Lock the main body with gold bolts on the rear hanger of the bicycle. Step 2: Put in the guide wheel rod and make sure it is adjusted to the same level as the flywheel/chain. Tighten the two small nuts. Step 3: Put the chain into the roller. After correct installation, the chain should stay in the middle of the roller, not offset to the side. (We recommend viewing our pictures and installation videos for installation) Wide Application Universally for single speed mountain bikes road bicycles cycling.This chain adjuster can change multi-speed bikes into single speed bike. Suitable for 7-12 speed chains. (Note: the bicycle needs to have a rear hanger to install) Package include : 1* Chain Roller Tensioner, 2 installation tool wrenches.(This product is not suitable for motorcycles)