The tire specifications of the 2013 BMW 3 Series are 225/45R18, the tire width is 225mm, the aspect ratio is 45, R means radial tires, and 18 means it can be installed on 18-inch rims.
The front tire specifications of the BMW 3 Series are 225/45R18, and the rear tire specifications are 255/40R18 (sports package) and 225/45R18. All BMW 3 Series series use 18-inch tires, but the width and aspect ratio of the tires are different for different configurations.
The front tire specifications of the BMW 3 Series are 225/45R18, and the rear tire specifications are: 255/40R18 (sports package) and 225/45R18.
Tires are ring-shaped elastic rubber products that roll on the ground and are assembled on various vehicles or machinery. In 1845, Rw Thomson, a civil engineer born in Scotland, invented the pneumatic tire and obtained a patent from the British government under the title "Improvement of Wheels for Carriages and Other Vehicles". On December 10 of the same year, the first pneumatic tire was born. Tires are usually mounted on metal rims, which can support the vehicle body, buffer external impacts, achieve contact with the road and ensure the vehicle's driving performance.
Tires are often used under complex and harsh conditions. They are subjected to various deformations, loads, forces, and high and low temperature effects when driving. Therefore, they must have high load-bearing performance, traction performance, and cushioning performance. . At the same time, high wear resistance and flex resistance, as well as low rolling resistance and heat generation are also required. Half of the world's rubber consumption is used in tire production, which shows that the tire's ability to consume rubber is not trivial.
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