Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 150/80-15 | 160/90-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.45 (621) | 26.34 (669) | 1.89 (48) 7.7% |
| Width inches (mm) | 5.91 (150) | 6.3 (160) | 0.39 (10) 6.7% |
| Circum. inches (mm) | 76.81 (1950.93) | 82.75 (2101.73) | 5.94 (150.8) 7.7% |
| Sidewall Height inches (mm) | 4.72 (120) | 5.67 (144) | 0.94 (24) 20% |
| Revolutions per mile (km) | 824.91 (512.58) | 765.73 (475.8) | -59.19 (-36.78) -7.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.55 mph (34.67 km/h) |
| 25 mph (40.23 km/h) | 26.93 mph (43.34 km/h) |
| 30 mph (48.28 km/h) | 32.32 mph (52.01 km/h) |
| 35 mph (56.33 km/h) | 37.71 mph (60.68 km/h) |
| 40 mph (64.37 km/h) | 43.09 mph (69.35 km/h) |
| 45 mph (72.42 km/h) | 48.48 mph (78.02 km/h) |
| 50 mph (80.47 km/h) | 53.86 mph (86.69 km/h) |
| 55 mph (88.51 km/h) | 59.25 mph (95.36 km/h) |
| 60 mph (96.56 km/h) | 64.64 mph (104.02 km/h) |
| 65 mph (104.61 km/h) | 70.02 mph (112.69 km/h) |
| 70 mph (112.65 km/h) | 75.41 mph (121.36 km/h) |
| 75 mph (120.7 km/h) | 80.8 mph (130.03 km/h) |
| 80 mph (128.75 km/h) | 86.18 mph (138.7 km/h) |
| 85 mph (136.79 km/h) | 91.57 mph (147.37 km/h) |
| 90 mph (144.84 km/h) | 96.96 mph (156.04 km/h) |
| 95 mph (152.89 km/h) | 102.34 mph (164.71 km/h) |
| 100 mph (160.93 km/h) | 107.73 mph (173.37 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1949 | 2264 | 2438 | 2546 | 2662 | 2745 | 2836 | 2944 | 3093 | 3242 | 3408 | 3541 | 3781 | 4047 | 4254 | 4386 | 4461 | 4735 | 5116 | 5945 |
Better Fuel Economy Factory Ratios Increased Power
