You have no items in your shopping cart
A combination of unmatched durability and huge range of cog sizes make these Surly track cogs a go-to for working, tracklocross or just getting around on your fixie! Read more..
Surly track cogs are threaded the same as a BMX freewheel (1.375 x 24 tpi right-hand threads). This means that they will thread onto single-speed rear hubs, as well as BMX freewheel hubs, *but will will be unsafe to ride*. Track cogs are meant to work on track hubs when secured by a locking only.