Name: Aluminum Single Speed Cog
Brand: Wolf Tooth
SKU: AL-SS-BLU-COG20
Price: 54.95 USD
Availability: OutOfStock

These aluminum single speed cogs feature extra tall teeth for reliable chain retention when using chain tensioners. They are reversible and feature a 4.5 mm width at the base that won't dig into your freehub body.

Compatibility

These will fit on Shimano Hyperglide style freehub spline (geared or single speed).
Not compatible with Shimano Microspline or SRAM XD freehubs.
Designed to work with any 9, 10, and 11 spd chain and SRAM Eagle, Shimano HG+, KMC, Wipperman, and Connex 12 spd chain.
Not compatible with 12 spd SRAM Transmission (T-type) and Road Flattop chain or Campagnolo Ekar 13-spd chain.

Related products

Single speed spacer kit with stainless steel lockring allows you to dial in your chainline.

Our Drop-Stop® chainrings pair with these cogs for the ultimate single speed drivetrain.

For more durability, check out our Stainless Steel Single Speed cogs.

Tech Specs

Weight: 16T • 14.5g | 17T • 16.5g | 18T • 19g | 19T • 21g | 20T • 23.5g | 22T • 28g
Material: 7075-T6 Aluminum
Made in the USA

Color Shop - Choose Wolf Tooth anodized color components for your bike

Patent and trademark information

WARNING Handling this product will expose you to chemicals, including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For further information go to www.P65Warnings.ca.gov.

Right to Repair

Replacement parts and service guides are available for all Wolf Tooth components, accessories, and tools. If something breaks in a crash, replace just the affected part(s) instead of buying an entire new assembly. Then we’ll show you how to fix it.

Machined in Minnesota

Wolf Tooth has put an emphasis on local manufacturing since day one. Most products are made right here at the Wolf Tooth machine shop in Minnesota, USA. The rhythm of our CNC mills and lathes is the heartbeat of Wolf Tooth.

Engineered Precision

Obsessing over details is our thing. All Wolf Tooth items are the results of months and years of meticulous research, testing, and product development. We think of everything so you can focus your time on riding.

Responsive Support

Our Customer Support Team is here to help. This is a team of actual people, not AI bots. Contact us for any questions regarding compatibility, installation tips, new standards, service guides, shipping details, or anything related to bikes.