Surly Track Cog 3/32'' X 18t Silver CheckoutSpec= XD Freehub body this chain ring is a

this chain ring is a durable

Torque scale on both sides for upside-down use

75 thread pitch

}Magura MDR-P Disc Brake Rotor - 203mm 6-Bolt For eBike Silver/Black

Surly Track Cog 3/32'' X 18t Silver CheckoutSpec= XD Freehub body this chain ring is aSurly 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 Tooth Count 18 Size 3 32''