Pretty much what tester said about the tread, but the branding issue on tubulars is noticeable only on steep track bankings, where the the slick and not grippy printed stripe can result in loss of grip at low speed...
But usually on road bikes Vittoria branding goes on the drive side.
Sometimes you know, happen that you can't really go faster when you need to stay behind a line of rider that decided to keep that pace in a effort-rest exercise. :)
Pretty much what tester said about the tread, but the branding issue on tubulars is noticeable only on steep track bankings, where the the slick and not grippy printed stripe can result in loss of grip at low speed...
But usually on road bikes Vittoria branding goes on the drive side.