FEEDBACK SPORTS CHAIN KEEPERWhen you're cleaning your bike, performing maintenance, traveling or storing your bike without a rear wheel on, you will want to have a chain keeper. The Feedback Sports Chain Keeper is a highly functional maintenance accessory that will help you work on your bike like a pro. It retains chain tension after the rear wheel is removed. The Chain Keeper will work with road, cyclocross and mountain bikes and is compatible with quick release and 12mm thru-axles dropouts. Made from CNC aluminum and has a Delrin roller.FeaturesRetains chain tension for maintenance, washing, travel, and storageFits road, cyclocross, and mountain bikesCompatible with quick release and 12mm thru-axle dropouts | Feedback Sports Chain Keeper Red