如何看懂轮胎规格参数说明
Speed Ratings Speed Rating Maximum Speed Speed Rating Maximum Speed
B 50 km/h (31 mph) P 150 km/h (93 mph)
C 60 km/h (37 mph) Q 160 km/h (99 mph)
D 65 km/h (40 mph) R 170 km/h (106 mph)
E 70 km/h (43 mph) S 180 km/h (112 mph)
F 80 km/h (50 mph) T 190 km/h (118 mph)
G 90 km/h (56 mph) U 200 km/h (124 mph)
J 100 km/h (62 mph) H 210 km/h (130 mph)
K 110 km/h (68 mph) V 240 km/h (150 mph)
L 120 km/h (75 mph) W 270 km/h (169 mph)
M 130 km/h (81 mph) Y 300 km/h (188 mph)
N 140 km/h (87 mph) Z 240+ km/h (149 mph)
Tire Types
All Season Tires: Designated M & S (mud and snow). And may carry S, T or no speed rating. These tires cannot match the steering response of Touring or Performance tires but do provide - for a reasonable price - a smooth, quiet ride and predictable handling. Designed for balanced performance in all weathers - wet, dry and snowy conditions.
Standard Touring Tires: Designated M & S (mud and snow). And are S, T, H or V speed-rated. These tires, in 60, 65,70 and 75 series aspect ratios, offer improved handling and the look of performance tires but with the smooth, quiet ride better suited to passenger cars. Because Standard Touring tires set greater importance on ride comfort and treadwear than Grand Touring tires they tend to be available in taller aspect ratio sizes with lower speed ratings.
Grand Touring Tires: Designated M & S (mud and snow). And are H, V, or Z speed-rated. Grand Touring tires are frequently installed on new vehicles as original equipment. They have excellent handling capability -- but still providing a smooth ride -- and are designed for higher operating speeds than Standard Touring tires. These tires have low 50, 55, 60 and 65-series aspect ratios.
All Season Performance Tires: M & S-designated with S or T speed rating. Designed to replace standard passenger tires but adding a handsome look with bold, black or white lettering. Expect good response and handling with all-season traction. Available in 55, 60, 65 and 70 series aspect ratios.
M & S-designated with U or H speed rating. 60 series and lower. Designed for traction in light snow conditions. Specially formulated compounds remain flexible in cold weather while computerized tread designs provide good traction and excellent handling in all weathers.
Winter Tires: Aggressive tread patterns are designed for outstanding traction in snow and ice. Tread compounds are usually somewhat 'stickier' than found on All-season or Performance tires. Tend to wear faster than All-season tires when used in warm, dry conditions due to increased siping in the tread patterns.
Light Truck & SUV Highway Rib Tires: Developed primarily for the highway. Straight, circumferential rib design provides consistent, even wear, low noise and a pleasing, smooth ride.
Light Truck & SUV Highway All-Season Tires: Small tread-blocks provide the ride qualities of a passenger tire for the highway but provide, also, traction on gravel, sand and moderate snow.
Light Truck & SUV Off-Road, All-Terrain Tires: Designed for competent highway performance with off-road capability. Multi-faceted tread blocks provide 'bite' against front and sideways forces and will perform well on gravel, sand, mud and snow. Tend to be somewhat noisier and harsher than highway tires
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