A medium level track cog made from hardened Cr-Mo steel. Precision CNC machined for accurate roundness and tolerances. A great performing sprocket at an affordable price.

Specifications:

• JKA certified for Japanese's 250 Keirin Racing (12-16t)
• Hardened 4130 Cr-Mo steel
• Precision CNC machined
• Gen3 tooth profile 
• Good durability
• 12-20 tooth
• 1/8" chain width
• Standard 1.37"x24" threads
• Sprocket offset: 6mm (flange to tooth center)
• Pair with Velobike Sprocket Spacers for greatest chain line efficiency

Check out the Elite Sprockets for an upgrade in durability and drive chain efficiency

For more information on the various sprockets we make, check out our sprocket comparison guide here