Tire Size for 2005 Pontiac Grand Prix

2005 Pontiac Grand Prix Tire Sizes

Select a box to get your vehicle's tire size.

Original Tire Size (Show Details)

P225/60R16 97S

P	This letter indicates the intended use of the tire. P = Passenger Car LT = Light Truck C = Commercial Vehicle
225	This number indicates that your tire has a width of 225 millimeters.
60	This number indicates that your tire has an aspect ratio of 60%. This means that your tire's sidewall height (from the edge of the rim to the tire's tread) is 60% of the width.
R	This letter indicates how your tire was constructed. Radial is the standard construction method for about 98% of all tires sold today. R = Radial B = Bias Belt D = Diagonal
16	The tire size was designed to fit rims that are 16 inches in diameter.
97	This tire has a load index of 97, which means it's capable of carrying a load of 1610 pounds (730 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite.
S	This tire has a speed rating of S, which means 112 mph (180 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous.

Original Tire Size (Show Details)

P225/55R17 95H

P	This letter indicates the intended use of the tire. P = Passenger Car LT = Light Truck C = Commercial Vehicle
225	This number indicates that your tire has a width of 225 millimeters.
55	This number indicates that your tire has an aspect ratio of 55%. This means that your tire's sidewall height (from the edge of the rim to the tire's tread) is 55% of the width.
R	This letter indicates how your tire was constructed. Radial is the standard construction method for about 98% of all tires sold today. R = Radial B = Bias Belt D = Diagonal
17	The tire size was designed to fit rims that are 17 inches in diameter.
95	This tire has a load index of 95, which means it's capable of carrying a load of 1521 pounds (690 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite.
H	This tire has a speed rating of H, which means 130 mph (210 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous.

Original Tire Size (Show Details)

P225/55R17 95V

P	This letter indicates the intended use of the tire. P = Passenger Car LT = Light Truck C = Commercial Vehicle
225	This number indicates that your tire has a width of 225 millimeters.
55	This number indicates that your tire has an aspect ratio of 55%. This means that your tire's sidewall height (from the edge of the rim to the tire's tread) is 55% of the width.
R	This letter indicates how your tire was constructed. Radial is the standard construction method for about 98% of all tires sold today. R = Radial B = Bias Belt D = Diagonal
17	The tire size was designed to fit rims that are 17 inches in diameter.
95	This tire has a load index of 95, which means it's capable of carrying a load of 1521 pounds (690 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite.
V	This tire has a speed rating of V, which means 149 mph (240 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous.

Front Tire Size (Show Details)

P255/45R18 99W

P	This letter indicates the intended use of the tire. P = Passenger Car LT = Light Truck C = Commercial Vehicle
255	This number indicates that your tire has a width of 255 millimeters.
45	This number indicates that your tire has an aspect ratio of 45%. This means that your tire's sidewall height (from the edge of the rim to the tire's tread) is 45% of the width.
R	This letter indicates how your tire was constructed. Radial is the standard construction method for about 98% of all tires sold today. R = Radial B = Bias Belt D = Diagonal
18	The tire size was designed to fit rims that are 18 inches in diameter.
99	This tire has a load index of 99, which means it's capable of carrying a load of 1709 pounds (775 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite.
W	This tire has a speed rating of W, which means 168 mph (270 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous.

Rear Tire Size (Show Details)

P225/50R18 94W

P	This letter indicates the intended use of the tire. P = Passenger Car LT = Light Truck C = Commercial Vehicle
225	This number indicates that your tire has a width of 225 millimeters.
50	This number indicates that your tire has an aspect ratio of 50%. This means that your tire's sidewall height (from the edge of the rim to the tire's tread) is 50% of the width.
R	This letter indicates how your tire was constructed. Radial is the standard construction method for about 98% of all tires sold today. R = Radial B = Bias Belt D = Diagonal
18	The tire size was designed to fit rims that are 18 inches in diameter.
94	This tire has a load index of 94, which means it's capable of carrying a load of 1477 pounds (670 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite.
W	This tire has a speed rating of W, which means 168 mph (270 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous.

Original Tire Size (Show Details)

P225/60R16 97S

P	This letter indicates the intended use of the tire. P = Passenger Car LT = Light Truck C = Commercial Vehicle
225	This number indicates that your tire has a width of 225 millimeters.
60	This number indicates that your tire has an aspect ratio of 60%. This means that your tire's sidewall height (from the edge of the rim to the tire's tread) is 60% of the width.
R	This letter indicates how your tire was constructed. Radial is the standard construction method for about 98% of all tires sold today. R = Radial B = Bias Belt D = Diagonal
16	The tire size was designed to fit rims that are 16 inches in diameter.
97	This tire has a load index of 97, which means it's capable of carrying a load of 1610 pounds (730 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite.
S	This tire has a speed rating of S, which means 112 mph (180 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous.