High quality replacement KLX140 rear sprocket, Aluminum.  51t

• The 7075 T651 aluminum we use for these sprockets receives an extra tempering which reduces distortion and provides optimal thickness vs. typically thinner 7075 T6 sprockets
• 100% machined, no stamping or grinding
• Optimal tooth thickness results in maximum tooth and chain contact
• Not for KLX140 G or F models with 18" rear wheel