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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
sealed bearings
5mm thick (compared to the 5mm of Supple Bar tape)
Stainless steel bearings for maximum durability
Metal Rack Clips
Operates with Shimano Di2 for digital electronic shifting
NEW Surly Cogs Track Cog Surly Track Cog 3/32'' X 20t Silver variant-size-68x127 sealed bearingsSurly 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: 20
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