The Surly Track Cog is designed for riders who want strength, consistency, and dependable chain engagement. Machined to tight tolerances, it provides a secure fit on standard track hubs and maintains smooth power transfer under load.

With 20 teeth, this cog suits riders looking for a balanced gear for commuting, training, or track use. The 3/32″ width makes it compatible with common singlespeed and track chains. Built by Surly, it reflects Surly’s reputation for simple, durable parts that last.

This item is New Old Stock. It’s unused and ready to install. May have some marks from storage.

Key Features:

• Genuine Surly track cog
• 20 tooth gearing
• 3/32″ chain compatibility
• Precision-machined for reliable engagement
• Durable construction for long service life
• Condition: New Old Stock

Details