1 inch =25.4 mm
R stands for radial tire
15 means that the diameter of the opening in the tire is 15 inch.
That is to say, this tire is suitable for wheels with a diameter of 15 inch.
195/60R 14 85 hours
195 means that the tire width is195 mm.
60 indicates that the height from the opening in the tire to the tread is 60% of the tread width.
That is, the height from the inner opening of the tire to the tread is195x60% =117mm.
R stands for radial tire
14 is the inner diameter of the tire 14 inch.
85 is the load index, indicating that the corresponding maximum load is 520kg.
H is the speed code, indicating that the maximum safe speed is 2 10 km/h 0 km/h.
The last letters A to Z represent the certified speed class of tires, ranging from 4.8 km/h to 300 km/h..
Commonly used speed levels are:
Q160km/h
R170km/h
S180km/h
T190km/h
H2 10km/h
240 kilometers per hour
270 kilometers per hour
300 kilometers per hour
Z ZR speed is higher than 240 km/h.