I have non-kevlar Scorchers in the 406 size (they are also available in the 349 size, not the 355 size) and they feel fast. I have the front and rear at 100 and 95 psi respectively. I am not in a position to provide rolling resistance comparisons, but Greenspeed have released data. Unfortunately the tests did not include the Stelvio, Marathon Racer or Big Apple.
Last edited by Fear&Trembling; 06-25-06 at 02:30 AM.