Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/40-10 | 255/80-10 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 18.03 (458) | 26.06 (662) | 8.03 (204) 44.5% |
| Width inches (mm) | 10.04 (255) | 10.04 (255) | 0 (0) 0% |
| Circum. inches (mm) | 56.65 (1438.85) | 81.88 (2079.73) | 25.23 (640.88) 44.5% |
| Sidewall Height inches (mm) | 4.02 (102) | 8.03 (204) | 4.02 (102) 100% |
| Revolutions per mile (km) | 1118.49 (695) | 773.82 (480.83) | -344.67 (-214.17) -30.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.91 mph (46.52 km/h) |
| 25 mph (40.23 km/h) | 36.14 mph (58.15 km/h) |
| 30 mph (48.28 km/h) | 43.36 mph (69.79 km/h) |
| 35 mph (56.33 km/h) | 50.59 mph (81.42 km/h) |
| 40 mph (64.37 km/h) | 57.82 mph (93.05 km/h) |
| 45 mph (72.42 km/h) | 65.04 mph (104.68 km/h) |
| 50 mph (80.47 km/h) | 72.27 mph (116.31 km/h) |
| 55 mph (88.51 km/h) | 79.5 mph (127.94 km/h) |
| 60 mph (96.56 km/h) | 86.72 mph (139.57 km/h) |
| 65 mph (104.61 km/h) | 93.95 mph (151.2 km/h) |
| 70 mph (112.65 km/h) | 101.18 mph (162.83 km/h) |
| 75 mph (120.7 km/h) | 108.41 mph (174.46 km/h) |
| 80 mph (128.75 km/h) | 115.63 mph (186.09 km/h) |
| 85 mph (136.79 km/h) | 122.86 mph (197.72 km/h) |
| 90 mph (144.84 km/h) | 130.09 mph (209.36 km/h) |
| 95 mph (152.89 km/h) | 137.31 mph (220.99 km/h) |
| 100 mph (160.93 km/h) | 144.54 mph (232.62 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
