What's more awesome than single speed cyclocross?! Nothing! Want to build a single speed without having to buy a dedicated frame? Do it on the cheap with this kit from Origin-8. It includes everything you need to convert a modern bike with a Shimano-style cassette freehub body into a single speed. Specifications: Type: Single Speed Conversion Kit Speeds: Single Speed (3/32") Drive Type: Shimano/SRAM Color: Black Weight: - Includes: (1) 16T Cog (3/32") (1) 18T Cog (3/32") (8) Various spacers including 2 conical spacers for increase cog support and stiffness (1) Rear hanger-mounted chain tensioner