Here's a link to where I got these from:
VeloSolo Shop - Disc Hub Mount Cogs and Accessories
They work great I'm just going in a different direction so I've got two of these for sale. Both are 3/32 and will work with regular 3/32 chains or 1/8 track chains.
1. 19t cog, used has 270 miles on it. Great condition, teeth are clear and strong. $20 shipped
2. 18t cog, new in package. 0 miles. $25 shipped
Get both for $40
