Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/80-22.5 | 315/70-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.3 (947.5) | 39.86 (1012.5) | 2.56 (65) 6.9% |
| Width inches (mm) | 9.25 (235) | 12.4 (315) | 3.15 (80) 34% |
| Circum. inches (mm) | 117.19 (2976.66) | 125.23 (3180.86) | 8.04 (204.2) 6.9% |
| Sidewall Height inches (mm) | 7.4 (188) | 8.68 (220.5) | 1.28 (32.5) 17.3% |
| Revolutions per mile (km) | 540.65 (335.95) | 505.95 (314.38) | -34.71 (-21.57) -6.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.37 mph (34.4 km/h) |
| 25 mph (40.23 km/h) | 26.72 mph (42.99 km/h) |
| 30 mph (48.28 km/h) | 32.06 mph (51.59 km/h) |
| 35 mph (56.33 km/h) | 37.4 mph (60.19 km/h) |
| 40 mph (64.37 km/h) | 42.74 mph (68.79 km/h) |
| 45 mph (72.42 km/h) | 48.09 mph (77.39 km/h) |
| 50 mph (80.47 km/h) | 53.43 mph (85.99 km/h) |
| 55 mph (88.51 km/h) | 58.77 mph (94.59 km/h) |
| 60 mph (96.56 km/h) | 64.12 mph (103.19 km/h) |
| 65 mph (104.61 km/h) | 69.46 mph (111.78 km/h) |
| 70 mph (112.65 km/h) | 74.8 mph (120.38 km/h) |
| 75 mph (120.7 km/h) | 80.15 mph (128.98 km/h) |
| 80 mph (128.75 km/h) | 85.49 mph (137.58 km/h) |
| 85 mph (136.79 km/h) | 90.83 mph (146.18 km/h) |
| 90 mph (144.84 km/h) | 96.17 mph (154.78 km/h) |
| 95 mph (152.89 km/h) | 101.52 mph (163.38 km/h) |
| 100 mph (160.93 km/h) | 106.86 mph (171.98 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1288 | 1496 | 1611 | 1682 | 1759 | 1814 | 1874 | 1945 | 2044 | 2142 | 2252 | 2339 | 2498 | 2674 | 2811 | 2898 | 2948 | 3128 | 3380 | 3928 |
Better Fuel Economy Factory Ratios Increased Power
