Single Speed Cassette Cogs Home / Components / Cogs & Freewheels / Single Speed Cassette Cogs / Gusset DoubleSix SS Cog Gusset DoubleSix SS Cog (2) Gusset DoubleSix SS Cog (2) £13.75 RRP: £0.00 Stock Status: In Stock Teeth: 12t 13t 14t 15t 16t 17t 18t 19T Add to your Wish List Information Reviews Bikemonger says... " Same wide foot print advantages as the top end Surly, but a few quid cheaper" CNC machined Cr-Mo 5/64” single speed cog with broad 7mm base. HG type spline compatible. Broad 7mm base avoids the cog ripping into Cassette bodies. Chrome Plated finish. 12, 13, 14, 15, 16, 17, 18 or 19T suitable for narrow 5/64” (9 speed) chains. Based on 2 review(s) Write an online review and share your thoughts with other shoppers! MrCat - Isle of Man I can't believe how awesome this sprocket is. I attribute all my recent strava KOM's to it. Dimitri Hayez - Belgium Very nice finish, bombproof and no eccentricity problem.