Surly Track Cog 1/8'' X 18t Silver Fixed Gear

Surly track cogs are threaded the same as a BMX freewheel (1.375 x 24 tpi right-hand threads). This means that they will fit on single-speed rear hubs, as well as BMX freewheel hubs, but this application is not recommended. Track cogs are meant to work on track hubs only.

• 415 hardened chromoly steel
• 1.375" x 24 tpi

Velo Mine customer service phone 217.679.2356 - Text: 217.827.1173 - Email: [email protected]