The Xtracycle FreeRadical Idler Kit is a quality, T-Cycle-brand boost to your chain management. With its own custom idler clamp that allows you greater mounting possibilities, this kit will keep the chain from bouncing, hitting, rubbing and going where it shouldn't! No more dings out of the paint, no more scratched fenders, or friction on wider tires. The floating Power Idler moves side to side as you switch gears for a continually optimum position. The return chain gets a Floating Chaintube to keep it out of trouble. No matter where you're going, T-Cycle's Xtracycle Idler Kit has got your back!