Wolf Tooth Single Speed Aluminum Cog - 18t Compatible 3/32" Chains Purple 26 Tires They come in three sizes

They come in three sizes to fit 12"-24" wheeled bikes and theyre scrappy enough to hold up to youthful exuberance

6/H8 Upper | ZS56/30 Lower Tapered Black

Shaft Type Threaded Tube Compound Butyl ISO Width (mm) 18 ISO Width (mm) 19 ISO Width (mm) 20 ISO Width (mm) 21 ISO Width (mm) 22 ISO Width (mm) 23 ISO Width (mm) 24 ISO Width (mm) 25 ISO Diameter 622 / Road / 29" keyword search Quantity Break Valve Core Removable Labeled Size 700 x 18 - 25 Valve Presta Med 41-55mm

Does not include BB

Wolf Tooth Single Speed Aluminum Cog - 18t Compatible 3/32" Chains Purple 26 Tires They come in three sizesWolf Tooth Single Speed Aluminum Cog: 18T Compatible with 3 32" Chains Purple. Light strong with extra tall teeth the Wolf Tooth Aluminum Single Speed Cog is a lightweight option for single speed cogs thats offered in a variety of sizes. Wide 4. 5mm base wont dig into your freehub Made of 7075 Aluminum Alloy for durability and lightness Made in the USA TECH SPECS Tooth Count 18 Defined Color Purple