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. 

Supersprox countershaft sprockets are the lightest and strongest sprockets  on the market.

This sprocket is available as 15, 16 or 17 tooth.  Standard sprocket sizes are available using the general bike filter.  If you're considering adjusting your gearing, please see the following information - Adjusting your gearing