Buick Roadmaster Tire Sizes in Simple-to-Read Graphs

Tire width for different generations

- Min-max tire width: 225 mm
- Min-max wheel diameter: R15
- Min-max sidewall height: 158 mm
- Tire width difference from average: -6.2%
- Average wheel height: 696 mm
- Tire width per 1 hp: 0.9 mm / 1 hp
- Weight per 1 mm of tire width: 9 kg / 1 mm
- Load to 1 tire: 511 kg / 1127 lbs
- Power to 1 tire: 66 hp / 49 kW
- Tiremain rating: 8 / 10

Average tire width: 225 mm;
Car body width: 2028 mm;
Car width to tyre width: 11%;

Disc height: 381 mm;
Tire height: 158 mm;
Wheel height: 696 mm;

5.7 i V8 — 0.9 mm per 1 hp (1.2 mm/kW)

Vehicle	Tire width / profile height	Whole tire height	Engine сс to 1 tire	Tire circumference	Summary tire width
5.7 i V8	225 / 158 mm	696 mm (27.4 in)	1433 cc (1.43 L)	2187 mm (86.1 in)	900 mm (35.4 in)

- Min-max tire width: 235 mm
- Min-max wheel diameter: R15
- Min-max sidewall height: 165 mm
- Tire width difference from average: -10.2%
- Average wheel height: 710 mm
- Tire width per 1 hp: 0.9 mm / 1 hp
- Weight per 1 mm of tire width: 8 kg / 1 mm
- Load to 1 tire: 465 kg / 1024 lbs
- Power to 1 tire: 66 hp / 49 kW
- Tiremain rating: 8 / 10

Average tire width: 230 mm;
Car body width: 2006 mm;
Car width to tyre width: 11%;

Disc height: 381 mm;
Tire height: 161 mm;
Wheel height: 703 mm;

5.7 i V8 — 0.9 mm per 1 hp (1.2 mm/kW)

Vehicle	Tire width / profile height	Whole tire height	Engine сс to 1 tire	Tire circumference	Summary tire width
5.7 i V8	235 / 165 mm	710 mm (28 in)	1433 cc (1.43 L)	2231 mm (87.8 in)	940 mm (37 in)