Basic knowledge about motorcycle tires

Tires are consumables, they begin to wear as soon as the wheels turn. The speed of wear is related to many factors. The same tire has different service life due to different road surface, load, driving technique, maintenance and maintenance level. Therefore, when the tire has reached a certain mileage, it should be replaced. Generally, the tire groove should not be less than 2mm, otherwise, it will cause side slips on the corners due to its poor grip, and there may be dangerous accidents such as tire punctures when driving at high speeds. These are related to the life safety of drivers, so they should be highly valued.
If you want to roughly classify tires, they can be divided into tubeless tires and tubeless tires (usually referred to as tubeless tires by car repairers). The principle of inner tube tires is to keep air in the inner tube, and does not require precise contact between the tire and the rim. Even if the air pressure is low, there is no need to worry that the tire will fall off the wheel and cause air leakage. Therefore, inner tube tires are commonly used in off-road vehicles and American street cars that use rims and steel wires. The principle of tubeless tires is to use the special structure of the rim of the steel ring (rim) and the edge of the tire to seal the air in the carcass. Even if this kind of tire is stabbed by a foreign object, the air will not disappear immediately, and the repair of a puncture is also very convenient, so it is very popular with motorcycle friends. In recent years, tubeless tires have gradually been used on ordinary motorcycles. It can be seen that the two types of tires have their own strengths.

Generally, qualified tires are marked with specifications, maximum load, inflation pressure, standard rims, and brand name and direction. For example, the tire is marked with specifications 90/90-18 51S, where the first 90 means the width is 90mm; the 90 after the "/" means the aspect ratio (%), that is, the height is 90% of the width; the one after the "—" 18 means that the inner diameter of the tire is 18 inches (1 inch = 2.54cm),
Some tires are not marked with aspect ratio, which means that the aspect ratio is 100%, that is, the width is equal to the height*. JK 621-03 Off-road Motorcycle Tire is your good choice.