Supersprox steel countershaft sprockets are made from SCM-435 case hardened steel for extended life. The refined core structure ensures that the teeth will not break when worn like cheap C-45 sprockets.
Grooves and lightening holes for off road bikes and Lightening holes for street bikes. The lightest and strongest sprockets on the market.
Please Note, these sprockets are now black
520 Pitch - 15 Tooth