- You Choose Size: 15, 16, 17 or 18 tooth
- This NEW 3/32" cog is perfect for your fixed gear conversion
- You can run a 1/2" x 3/32" or 1/2" x1/8" chain on this cog
- Fits 24 x 1.37 english right hand threaded hubs
- Standard track cog: Formula, Shimano, Joytech etc.
JOYTECH has been making high-quality hubs for years and is one of the big manufacturers that supply hubs to bike manufactures (Trek, Cannondale, Specialized etc.) for many of their bikes.