Want to buy a 255/40R21 ELECT™ tire but don’t know which is the best solution for your car? In the Pirelli catalogue, you can find a selection of 255/40R21 ELECT™ Tires, compare their technical features in detail and choose the tire that fully meets your expectations. Pirelli dealers are also ready to help you through all stages of your purchase, providing any information you need. The 255/40R21 ELECT™ tire has the following features: the first three digits 255 refer to the width of the tire in millimetres. The second two-digit number 40 refers to the ratio between the height of the sidewall and the width of the tire. R stands for “Radial” and the last two figures 21 indicate the wheel diameter in inches. Filter the Tires by season: winter, all season and summer; we have a complete catalogue for all weather conditions and types of car: economy cars, SUVs and sports cars. Browse the best selection of Pirelli 255/40R21 ELECT™ Tires now and buy Tires for your car with complete peace of mind.