fullertonbicycle

Track Cogs

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$17.5 $35 In stock

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
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 4 reviews)

Edward ★★★★★

Swapped this onto my single-speed hub and it threaded on clean and snug with no wobble at all. The 1.375 x 24 tpi threading means it fits BMX freewheel hubs too, so I've got a spare that works on both my builds.

Amelia V. ★★★★★

The 1.375 x 24 tpi threading matched my single-speed hub perfectly, no adapter needed. Nice thick teeth that don't flex under hard pedaling, and it's been quiet and solid for a few hundred miles now.

Sofia ★★★★★

Swapped this onto my old BMX freewheel hub and the 1.375 x 24 tpi threading matched up perfectly. Teeth are crisp and it runs dead quiet on my singlespeed setup.