Supersprox offers a full range of sprockets for most modern motorcycles. Supersprox sprockets last longer, saving on running costs for your motorcycle. Made from SCM-435 case-hardened steel for extended life. The refined core structure ensures that the teeth will not break when worn, unlike cheap C-45 sprockets. Grooves and lightening holes for off-road bikes / lightening holes for street bikes. The lightest and strongest sprocket on the market.