As one of the world's largest tire manufacturers, Michelin produces special tires for almost every means of transport: for cars, vans, trucks, buses, agricultural machinery, earth-moving equipment, special vehicles, light rail vehicles, subways, aircraft, motorcycles, scooters and bicycles. The product portfolio covers a broad spectrum: the smallest tires have a diameter of 20 centimetres, the lightest tires weigh just over 200 grams. The largest dump truck tire measures over four meters in diameter and weighs more than five tons. Every seventh tire worldwide comes from the Michelin Group.