Converts any multi speed bike to a single speed.;Mounts on Derailleur hanger.;Floating Pulley and spring adjusts for perfect chain tension.;Fits up to a 22 Teeth.;Typical Selling price up to 24.99.

• Mr Control Mountain Bike Chain Tensioner MK1 Single SPD

Mr Control Mountain Bike Chain Tensioner MK1 Single SPDMr Control