The difference between 95Y and 99Y is the load rating of the tires. Presumably you can haul more stuff down the autobahn without blowing the tire if it's a 99Y. Michelin PSS are a bit wider than most for the same tire size.2015-11-20
What is H or V rating on tires?
H-rated tires are rated for a maximum speed of 130 mph. The V rating is the next rating faster, and V-rated tires are good to 149 mph. Both H- and V-rated tires are considered to be performance-touring tires.
What is W or Y speed rating?
SPEED SYMBOLS
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V
W
Y
How is tire speed rating determined?
Tire manufacturers determine a tire's capacity for heat and speed using a testing machine. ... Starting at a speed 40 km/h lower than the proposed rating level, the tire is spun for 10-minute increments at higher and higher speeds, until it reaches the target speed. The tire spins for 10 minutes at the target speed.
Which is better T or H speed rating?
SPEED SYMBOLS
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T
U
H
V
What does 99Y mean on a tire?
When the Y-speed rating indicated in a service description is enclosed in parentheses, such as 285/35ZR19 (99Y), the top speed of the tire has been tested in excess of 186 mph, 300 km/h indicated by the service description as shown below: 285/35ZR19 99Y.
What is 99Y speed rating?
225/50ZR16 in excess of 149 mph, 240 km/h
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285/35ZR19 99Y 186 mph, 300 km/h
How fast can ah rated tire go?
SPEED SYMBOL SPEED (mph)
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T 118
U 124
H 130
V 149
Can I use ZR tires instead of R?
The Z in ZR corresponds to an old label used by manufacturers to indicate that the speed index is higher than V, i.e. 150 mph. Thus, a ZR tyre has a speed index of V, W, or Y. ... There is therefore no difference between a ZR or an R tyre with the same speed index.