Tire speed rating

[bga68scale]

Tire speed rating

Index 		Speed rating
Q 		up to 100 mph (160 km/h)
R 		up to 106 mph (170 km/h)
S 		up to 112 mph (180 km/h)
T 		up to 118 mph (190 km/h)
H 		up to 130 mph (210 km/h)
V 		up to 149 mph (240 km/h)
W 		up to 168 mph (270 km/h)
Y 		up to 186 mph (300 km/h)
ZR...Y 		up to 186 mph (300 km/h)
ZR...(..Y) 	over 186 mph (300 km/h)
ZR 		over 149 mph (240 km/h)