These are top quality clutch kits that offer excellent wear resistance as well as huge holding strength. These were designed with performance in mind (these are not cheap cork fibers). New friction plates with Artrax special break-in coating to ensure even break-in to help prevent glazing New steel plates matched to the fibers Hi-rate spring kit: 10% to 25% stiffer springs than stock setup We recommend all motorcycle parts are fitted and tested by qualified professionals. Fits: Honda CR250R 1994-2007