Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/90-15 | 250/65-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.92 (633) | 26.8 (680.6) | 1.87 (47.6) 7.5% |
| Width inches (mm) | 5.51 (140) | 9.84 (250) | 4.33 (110) 78.6% |
| Circum. inches (mm) | 78.29 (1988.63) | 84.18 (2138.17) | 5.89 (149.54) 7.5% |
| Sidewall Height inches (mm) | 4.96 (126) | 6.4 (162.5) | 1.44 (36.5) 29% |
| Revolutions per mile (km) | 809.27 (502.86) | 752.67 (467.69) | -56.6 (-35.17) -7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.5 mph (34.61 km/h) |
| 25 mph (40.23 km/h) | 26.88 mph (43.26 km/h) |
| 30 mph (48.28 km/h) | 32.26 mph (51.91 km/h) |
| 35 mph (56.33 km/h) | 37.63 mph (60.56 km/h) |
| 40 mph (64.37 km/h) | 43.01 mph (69.21 km/h) |
| 45 mph (72.42 km/h) | 48.38 mph (77.87 km/h) |
| 50 mph (80.47 km/h) | 53.76 mph (86.52 km/h) |
| 55 mph (88.51 km/h) | 59.14 mph (95.17 km/h) |
| 60 mph (96.56 km/h) | 64.51 mph (103.82 km/h) |
| 65 mph (104.61 km/h) | 69.89 mph (112.47 km/h) |
| 70 mph (112.65 km/h) | 75.26 mph (121.13 km/h) |
| 75 mph (120.7 km/h) | 80.64 mph (129.78 km/h) |
| 80 mph (128.75 km/h) | 86.02 mph (138.43 km/h) |
| 85 mph (136.79 km/h) | 91.39 mph (147.08 km/h) |
| 90 mph (144.84 km/h) | 96.77 mph (155.73 km/h) |
| 95 mph (152.89 km/h) | 102.14 mph (164.38 km/h) |
| 100 mph (160.93 km/h) | 107.52 mph (173.04 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1915 | 2225 | 2396 | 2502 | 2616 | 2698 | 2788 | 2893 | 3040 | 3187 | 3350 | 3480 | 3717 | 3978 | 4181 | 4312 | 4385 | 4654 | 5029 | 5844 |
Better Fuel Economy Factory Ratios Increased Power
