Wolf Tooth Single Speed Aluminum Cog - 20t, Compatible with 3/32" Chains, Gold Hammers & Punches UPC: 047853650501

UPC: 047853650501

129207-Q0-L

147147-Q0-L20B04

X-Large = Large

UPC: 812938010262

Wolf Tooth Single Speed Aluminum Cog - 20t, Compatible with 3/32" Chains, Gold Hammers & Punches UPC: 047853650501These Wolf Tooth aluminum single speed cogs feature extra tall teeth for reliable chain retention when using chain tensioners. 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 Shimano Hyperglide style freehub splines Not compatible with Shimano