International standard tire code

The rear tire specification, as the name implies, is the specification size of the rear tire of a car; the front and rear tire specifications of most cars are the same. In a few sports cars, rear-wheel drive and other high-performance special-purpose vehicles, the front and rear tire specifications will be different. For example, in the annual modified car competition in California, some car owners will modify the specifications of their front and rear tires differently, so that the front and rear tires will have a diameter difference of 1-2 meters, highlighting their own uniqueness. The driver's dress is also quite distinctive, giving people a very "alternative" feeling. The two-wheel drive model will be more convenient for this modification, because the problem of the inter-axle differential will not be involved in the modification process, even if the front and rear tires are different in specifications, it will not affect the normal driving of the vehicle. If you want to modify the four-wheel-drive model with different front and rear tire specifications, it will be a lot more troublesome than the two-wheel drive model. The four-wheel drive model will involve the problem of inter-axle differential, because the size of the front and rear wheels is different. There will be a speed difference between the two. If the inter-axle differential is not installed, the two wheels will "compete" with each other, so the vehicle will not run normally, causing serious damage to the tires and the drive shaft!