Surly Track Cog 1/8 X 19t Silver

Surly Track Cog 1/8 X 19t Silver is engineered for precise and reliable performance on track hubs. Crafted from durable 415 hardened chromoly steel, this cog ensures long-lasting strength and resistance to wear. The threading matches BMX freewheels (1.375 x 24 tpi right-hand threads), allowing compatibility with single-speed rear hubs and BMX freewheel hubs, though its optimal function is on track hubs only. Please note, the photo serves as a reference for color and material.