Surly Track Cog 1/8 X 17t Silver

Surly Track Cog 1/8 X 17t Silver is engineered for precision and durability, designed specifically for track hubs. Featuring threading identical to BMX freewheels (1.375 x 24 tpi right-hand threads), it offers versatile compatibility with single-speed rear hubs and BMX freewheel hubs, though its optimal performance is on track hubs only.

• Constructed from 415 hardened chromoly steel for enhanced strength and longevity
• Standard 1.375" x 24 tpi threading ensures reliable fitment
• Image shown is for color and material reference only