Tubular setups are nearly universal in the pro peloton because tubular rims are lighter than clinchers, tubular tires offer a supple ride quality, and, most importantly, tubular tires are somewhat rideable while flat, which makes them safer and allows pros to continue moving forward while waiting for the team car. But according to the tire team at Specialized that includes Wolf VormWalde (director of tires and tubes) and Oliver Kiefel (product manager for tires), clinchers are faster than their glue-up cousins — particularly the Turbo Cottons.