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Ships within 48 hours · Estimated delivery Nov 13 - Nov 18
8mm X4 stem
41-Thermal processed 4130 chromoly
Great for MTB riders wanting a more upright riding position
Features an integrated washer
Surly Track Cog 1/8'' X 16t Silver CheckoutSpec= SID SL C1 Ultimate - Blue - 100-110mm 8mm X4 stemSurly 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 16 Size 1 8''
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