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
• Photo for color and material reference only

Every Day Free Shipping: Joe Mamma offers free shipping on all Canadian orders over $200 excluding complete bicycles and trainers. Customers are also welcome to pick up their orders in store at no charge, you can opt to do so at checkout (please await your order completion notice before coming to pick up your order). 

Shipping Policy: Orders will be shipped as soon as possible, customers will be notified if any delay should occur. If one part of your order is unavailable at time of order, your order may be fulfilled with multiple packages. Shipping charges are non-refundable. International clients please note that customs or brokerage fees are the sole responsibility of the purchaser.

Joe Mamma Cycles ships to both Canada & the USA! We use Canada Post, UPS & Fedex to get you the best price & use recycled packaging to reduce our environmental impact.