SURLY Track Cog
1/8 "/ 17t
¥6,578
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Like the cassette cogs, Surly's fixed gear cogs are machined from SCM415 chromoly and hardened for wear resistancE They have also been redesigned to have a larger contact surface with the hub body to increase the threading area.
Threaded to ISO standards (1.375 "X24tpi), it will fit most British, Italian, and Japanese hubs, including Surly's Fixgear hubs and Fixxer hub converters.
Widths range from 3/32" and 1/8", and tooth counts from 13T to 22T.