What is a beaded edge tyre?
Beaded edge tyres were the first tyres to be mounted on a large amount of cars. The beaded edge had to be properly hooked into the rim of the wheels. Mounting the tyres was complicated and also dangerous because the air pressure had to be very high. If the edge is not correctly hooked into the rim, the tube can burst and cause serious injuries. The correct tyre size depends on the circumference of the inner wheel rim. The measurements display the external tyre diameter and the cross section of the tyre, for example 26 x 3 or 730 x 130.
