Definition of fetal width
First of all, the tire width of 225mm is a watershed. It can be understood that tires larger than or equal to 225 mm are wide tires, and tires smaller than 225 mm are narrow tires. Minicars are between 125mm and 155mm, compact cars are between 165mm and 195mm, and compact cars are between 195mm and 225mm.
Wide tire
From the physics we have learned, the wider the tire, the larger the contact area with the ground, which will increase the friction with the ground. This will undoubtedly strengthen the grip of the tire, making it more stable when braking and turning, and driving more smoothly.
If you think that the wider the tires, the better, then you are wrong! Due to the large contact area between the crown and the ground, the tire noise will also increase, and the tire resistance will be greater, resulting in higher fuel consumption.
Narrow tire
Contrary to wide tires, narrow tires can make it faster, make less noise and consume less fuel. But the braking performance will not be very good. For example, in economy cars, because of the body, the tires are generally narrower and more fuel-efficient, but the handling is greatly reduced. That's why.
So can a wide tire be downgraded to a narrow tire?
The answer is yes, but this is a prerequisite. 1. If you want to replace at least two tires, you must use tires with the same size on the same axis, otherwise it will cause eccentric wear and vehicle deviation;
2. Don't downgrade too much. For example, your previous tire width was 225. If you suddenly become 195, it won't work. It is ok to solve temporary problems in a short time, but it will not work after a long time. It is generally recommended that the reduction should not exceed 20 mm
To sum up:
In the process of daily tire replacement, it is still recommended to replace the same model, and do not blindly replace large and small tires. After all, tires can ensure the driving safety of vehicles, so be careful when replacing them!