Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/40-10 | 255/80-10 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 17.09 (434) | 26.06 (662) | 8.98 (228) 52.5% |
| Width inches (mm) | 8.86 (225) | 10.04 (255) | 1.18 (30) 13.3% |
| Circum. inches (mm) | 53.68 (1363.45) | 81.88 (2079.73) | 28.2 (716.28) 52.5% |
| Sidewall Height inches (mm) | 3.54 (90) | 8.03 (204) | 4.49 (114) 126.7% |
| Revolutions per mile (km) | 1180.35 (733.43) | 773.82 (480.83) | -406.52 (-252.6) -34.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 30.51 mph (49.1 km/h) |
| 25 mph (40.23 km/h) | 38.13 mph (61.37 km/h) |
| 30 mph (48.28 km/h) | 45.76 mph (73.64 km/h) |
| 35 mph (56.33 km/h) | 53.39 mph (85.92 km/h) |
| 40 mph (64.37 km/h) | 61.01 mph (98.19 km/h) |
| 45 mph (72.42 km/h) | 68.64 mph (110.47 km/h) |
| 50 mph (80.47 km/h) | 76.27 mph (122.74 km/h) |
| 55 mph (88.51 km/h) | 83.89 mph (135.01 km/h) |
| 60 mph (96.56 km/h) | 91.52 mph (147.29 km/h) |
| 65 mph (104.61 km/h) | 99.15 mph (159.56 km/h) |
| 70 mph (112.65 km/h) | 106.77 mph (171.84 km/h) |
| 75 mph (120.7 km/h) | 114.4 mph (184.11 km/h) |
| 80 mph (128.75 km/h) | 122.03 mph (196.38 km/h) |
| 85 mph (136.79 km/h) | 129.65 mph (208.66 km/h) |
| 90 mph (144.84 km/h) | 137.28 mph (220.93 km/h) |
| 95 mph (152.89 km/h) | 144.91 mph (233.21 km/h) |
| 100 mph (160.93 km/h) | 152.53 mph (245.48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1969 | 2288 | 2464 | 2573 | 2690 | 2774 | 2866 | 2975 | 3126 | 3276 | 3444 | 3578 | 3821 | 4089 | 4299 | 4433 | 4508 | 4785 | 5170 | 6008 |
Better Fuel Economy Factory Ratios Increased Power
