Profile Cogs

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PRODUCT DETAILS From the Top: A. Standard Cog, B. Elite Cog, C. Aluminum Cog Exclusively made to fit the Profile Racing Cassette Hub -Standard and Elite Cogs CNC machined from heat -treated 4340 aircraft alloy steel for strength and durability. Made in USA. Aluminum Cogs machined from 7075 Aluminum. Standard Cogs Available in 12T to 18T. 13T and 16T also available in SS size. Elite cogs available in 16T to 18T. Aluminum Cogs available in 13T to 18T. Standard 16t= 54g Elite 16t= 44g Aluminum 16t= 22g Aluminum Cogs are intended for race day use only. They will wear out much faster than CrMo cogs. Show more