This type brake pads construction for long pad life good for riding in wet mud dust. high performance brake pads.longest lifeperfect for use in endurance riding.higher heat generation.made from sinter copper alloy like original pads for longer life & perfect braking under all riding condition wet, dry, or coldsolid lever feel.sintered copper alloy engineering researched & tested in our laboratories by engineers with over 8 year experience in sintered pad technology.environment friendly product