Easton EC90 TK0 carbon track tubulars. Meant for just the velodrome - besides fixed gear, there's no brake track. Easton uses a nonstandard spline-based cog system, but I have cogs in 13-14-15-16, which should cover most scenarios. Tires are Conti Stehers.

I would guess these wheels/tires have been ridden on a grand total of six times - three on the wooden track at Carson, and three on the concrete track at Colorado Springs.