Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/70-15 | 250/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.92 (633) | 24.84 (631) | -0.08 (-2) -0.3% |
| Width inches (mm) | 7.09 (180) | 9.84 (250) | 2.76 (70) 38.9% |
| Circum. inches (mm) | 78.29 (1988.63) | 78.05 (1982.34) | -0.25 (-6.28) -0.3% |
| Sidewall Height inches (mm) | 4.96 (126) | 4.92 (125) | -0.04 (-1) -0.8% |
| Revolutions per mile (km) | 809.27 (502.86) | 811.84 (504.45) | 2.57 (1.59) 0.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.94 mph (32.09 km/h) |
| 25 mph (40.23 km/h) | 24.92 mph (40.11 km/h) |
| 30 mph (48.28 km/h) | 29.91 mph (48.13 km/h) |
| 35 mph (56.33 km/h) | 34.89 mph (56.15 km/h) |
| 40 mph (64.37 km/h) | 39.87 mph (64.17 km/h) |
| 45 mph (72.42 km/h) | 44.86 mph (72.19 km/h) |
| 50 mph (80.47 km/h) | 49.84 mph (80.21 km/h) |
| 55 mph (88.51 km/h) | 54.83 mph (88.23 km/h) |
| 60 mph (96.56 km/h) | 59.81 mph (96.26 km/h) |
| 65 mph (104.61 km/h) | 64.79 mph (104.28 km/h) |
| 70 mph (112.65 km/h) | 69.78 mph (112.3 km/h) |
| 75 mph (120.7 km/h) | 74.76 mph (120.32 km/h) |
| 80 mph (128.75 km/h) | 79.75 mph (128.34 km/h) |
| 85 mph (136.79 km/h) | 84.73 mph (136.36 km/h) |
| 90 mph (144.84 km/h) | 89.72 mph (144.38 km/h) |
| 95 mph (152.89 km/h) | 94.7 mph (152.4 km/h) |
| 100 mph (160.93 km/h) | 99.68 mph (160.43 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2066 | 2400 | 2585 | 2699 | 2822 | 2910 | 3007 | 3121 | 3279 | 3437 | 3613 | 3754 | 4009 | 4290 | 4510 | 4651 | 4730 | 5020 | 5424 | 6303 |
Better Fuel Economy Factory Ratios Increased Power
