Top of the line EAI fixed cog for track use or serious street riding.
Per EAI: "For professional track racers. Perfect threads, roundness, concentricity, and tooth profiles. Titanium Nitride coating increases lubricity and durability. Ridden by the most dominant track team in the world. With wins in the World Championships plus the Beijing and London Olympics, this cog is appropriately named."
- Threading: English 1.37 x 24 tpi
- Chain Compatibility: 1/8"
- Made in the US
- Colors differ per cog size.
Does not include lockring. You can purchase either a Wabi lockring, an EAI Track lockring or a Phil Wood Stainless steel lockring.