FMB / Aerocoach colab Track racing tubular. Pista Ultra 3000 160g, 23mm wide max 190 psi (fastest around 150psi) with a 0.25mm thick tread which is light yellow in colour. 

A pair of these will only take 13.4 watts to overcome rolling resistance at 55kph making them the worlds fastest tubular. The aim of the project was to produce a gain of around 1 metre per lap at 55kph on a 250m velodrome. The new casing with 2 simultaneous strands reduces the deformation under stress. The latex tread compound adds further reductions in rolling resistance, abrasion resistance and grip.

If you ride Vittoria Pista Speed tubulars at 150psi, or Vittoria Pista Oro clinchers at 115psi (nearly identical Crr values), then swapping to the Pista Ultra 3000 tubular or the Pista Ultra 3000 clincher is around 1 metre advantage every single lap of a 250m velodrome when travelling at 55kph: 91cm per lap for the tubular and 105cm per lap for the clincher.