Tire Size for 1990 Pontiac Grand Prix

1990 Pontiac Grand Prix Tire Sizes

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

Original Tire Size (Show Details)

P215/65R15

P	This letter indicates the intended use of the tire. P = Passenger Car LT = Light Truck C = Commercial Vehicle
215	This number indicates that your tire has a width of 215 millimeters.
65	This number indicates that your tire has an aspect ratio of 65%. This means that your tire's sidewall height (from the edge of the rim to the tire's tread) is 65% 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
15	The tire size was designed to fit rims that are 15 inches in diameter.

Original Tire Size (Show Details)

P195/75R14

P	This letter indicates the intended use of the tire. P = Passenger Car LT = Light Truck C = Commercial Vehicle
195	This number indicates that your tire has a width of 195 millimeters.
75	This number indicates that your tire has an aspect ratio of 75%. This means that your tire's sidewall height (from the edge of the rim to the tire's tread) is 75% 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
14	The tire size was designed to fit rims that are 14 inches in diameter.

Alternate Tire Size (Show Details)

P205/65R15

P	This letter indicates the intended use of the tire. P = Passenger Car LT = Light Truck C = Commercial Vehicle
205	This number indicates that your tire has a width of 205 millimeters.
65	This number indicates that your tire has an aspect ratio of 65%. This means that your tire's sidewall height (from the edge of the rim to the tire's tread) is 65% 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
15	The tire size was designed to fit rims that are 15 inches in diameter.

Original Tire Size (Show Details)

P215/60R16

P	This letter indicates the intended use of the tire. P = Passenger Car LT = Light Truck C = Commercial Vehicle
215	This number indicates that your tire has a width of 215 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.

Original Tire Size (Show Details)

P215/60R16

P	This letter indicates the intended use of the tire. P = Passenger Car LT = Light Truck C = Commercial Vehicle
215	This number indicates that your tire has a width of 215 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.

Original Tire Size (Show Details)

P245/50ZR16

P	This letter indicates the intended use of the tire. P = Passenger Car LT = Light Truck C = Commercial Vehicle
245	This number indicates that your tire has a width of 245 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
16	The tire size was designed to fit rims that are 16 inches in diameter.
Z	This tire has a speed rating of Z, which means it has been tested to travel slightly faster than 149 mph (240 km/h) for a duration of 10 minutes.