Surly Track Cog 3/32'' X 16t Silver ModelNumber=5701 The Rib Cage features re-enforced

The Rib Cage features re-enforced spoke holes cross-over-spoke lacing for lateral strength and extra thick outer walls to protect against case dents

New center mount version compatible with most road frames

0 Length 292 Spoke Interface J-Bend Defined Color Silver

Aero bar compatible

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Surly Track Cog 3/32'' X 16t Silver ModelNumber=5701 The Rib Cage features re-enforcedSurly Track Cog 3 32'' X 16t Silver. 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 TECH SPECS Tooth Count 16