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 and helps prevent glazing.
• New steel plates matched to the fibers.
• Hi rate spring kit 10% to 25% stiffer springs than your stock setup.

(See bike-specific application guide in Sprint3 Fitments)