Tubular tires are primarily used in competitions due to their excellent rolling characteristics and very good run-flat properties. With the Giro, you don't have to miss out on these strengths even during training. To offer you this simply and robustly manufactured Giro at a particularly affordable price, we have this training tire produced in Asia with a cotton casing according to our specifications. The valve can be replaced. Maximum valve length for valve extension: 35 mm. ETRTO: 27 x 1.