10T cog

Probably the best Singlespeed cogs(sprockets) on the market. Thanks to the unique tooth shape, narrow-wide profile and perfect roundness these sprockets will outlast any other aluminium counterpart. Each tooth is much wider and "square" compared to a commonly used shape. Addition of narrow/wide profile, taken from our award winning Sram spiderless chainring, provides additional teeth strength and offers greater chain retention if a tensioner or chain gets loose while riding. This is the first cog on the market offering such a feature.

Cog fits Shimano freehub bodies and offer a 7mm thick base to prevent the damage of alloy freehub under heavy loads. The teeth are central to the base, so they can be flipped around to double the life of the cog. KMC chains recommended. Always use a new chain with a new cog.




USA, Canada and RoW Europe customers only UK customers only

Please choose the option which best describes your country. Mistakes will be refunded automatically.

. .

The lightest solution on the bicycle market – period.


Size (Mass +/-1g):

16T(23g), 18T(24g), 20T(29g)




cnc machined 7075 Txxx Aluminum. Long-lasting construction. 7mm wide.




Fits to almost every hub on the market. Please note that some freehubs may be a bit out of tolerance, so the cog may fit tight in such case. This is absolutely normal.

Chain compatibility

all 1X, 6/7/8/9/10/11spd chains. To utilize narrow-wide feature please use 9/10/11spd chain. (Not compatible with halflink chains.)

MSRP: £29 only ......

Designed in UK. Manufactured in Poland (EU).


Small print: If you are over 100kg/220lbs or ride your singlespeed every single day, then it's better to choose steel option which is coming soon.


Bikemags about us:

Singletrack magazine- Absolute Black’s narrow/wide singlespeed Cog

Bikerumor - New Absolute Black Single Speed Cog

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