Surly
 | Surly Track Cog, 1/8x15t, silverSurly track cogs are threaded the same as a BMX freewheel (1.37 x 24tpi 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...Only $23.95 - Click here to buy now! |
 | Surly Stainless Steel Track LockringCNC-machined from premium stainless steel...no flaking chrome or rusting. Weve improved the design to increase thread contact. Its now a full 5mm thick, plus a lip (.65mm extra) to maximize thread contact on all compatible hubs. Fits English lockring...Only $19.99 - Click here to buy now! |