Check the listing for details. Wolf Tooth Single Speed Aluminum Cog - 18t, Compatible with 3/32" Chains, Gold. Color: Yellow, Condition: New. Listed at 54.95 USD. These Wolf Tooth aluminum single speed cogs feature extra tall teeth for reliable chain retention when using chain tensioners.Item weight: 19g. Crafted with strong and lightweight premium 7075-T6 aluminum. Optimized for use with 9,10,11 speed chains, but suitable for use with some 12-speed chains. Reversible and 4.5mm wide at the base to help prevent cog from damaging your freehub body. Fits Hyperglide style freehub splines. Not compatible with Microspline or SRAM XD freehubs. Not compatible with Campagnolo 13-speed chains. Item Specifications: Tooth Count, 18, Cassette Body Type, /SRAM 8, 9, 10 Speed, Drivetrain Speeds, Single Speed 3/32", Material, Aluminum, Defined Color, Gold, SHIPS TODAY! Order before 1:30PM EST, M - F, and this item ships the same day! HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us