13T track cog

I’m using this 13t 3/32 track cog with a narrow 3/32 Izumi V Super Toughness chain and Wolf Tooth 50t drop stop chainring. Perfect functionality, relatively quiet as long as the drivetrain is kept clean and well adjusted. I wanted to up the gearing on my fixed gear so I needed to get a 13T cog because Wolf Tooth does not make anything bigger than a 50T chainring of that particular type.

Edward L.