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.

520 pitch - 16 Tooth

Also available in other sizes - Click Here