SurlySplined Single Speed Cog(Return to Product Page)

I mean its a surly cog super durable reliable lasts forever.

I built up a 20lb SS hardtail this summer and tried an 18 and a 20 tooth cog, b ut the 19 was other sweet spot. The Surly was best because not only did they make a 19, but it has a wider base so it cannot hurt the cassette carrier, as some of the other cogs were not so nice. Don't cheap out and ruin your free hub - and an aluminum cog wont; last long on a SS.

I have used Surly cogs for 12+ years on my MTBs. Cogs between 16t - 22t have equipped my bikes without issue. There are lighter, flashier cogs on the market but Surly cogs are strong and reliable plus their price makes them a very good value, full stop.

If you can afford those expensive, unobtainium cogs, go for it but Surly cogs are tough to beat.

I have had great success with these Cogs for my SS bikes. I typically wear out most cogs quickly but these last me 1-2 years+ before they start showing wear.

Installed this on my KONA Private Jake to make it SS. runs quit and smooth.

One of the best options(for price) for single speed cogs, these cogs have a large enough surface area which helps avoid eating into freehub bodies.

I would never use aluminum again. These are the ony way to go for serious single speeders