The Challenge Seiran Over/Under Idler Kit is for riders who want to replace that complicated, problematic stock idler system that comes with their bike. Get the kit and you'll be running a super reliable T-Cycle Over/Under Idler along with undefeatably durable hardware. Fully floating for a smooth, quiet ride. The Clamp-On Idler Mount makes maintenance and installation a breeze.
Note: this kit is for the unsuspended Seiran only. The suspended Seirans pretty much have to use the stock large bearing idler.