Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/80-15 | 140/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.82 (605) | 22.72 (577) | -1.1 (-28) -4.6% |
| Width inches (mm) | 5.51 (140) | 5.51 (140) | 0 (0) 0% |
| Circum. inches (mm) | 74.83 (1900.66) | 71.37 (1812.7) | -3.46 (-87.96) -4.6% |
| Sidewall Height inches (mm) | 4.41 (112) | 3.86 (98) | -0.55 (-14) -12.5% |
| Revolutions per mile (km) | 846.73 (526.13) | 887.82 (551.66) | 41.09 (25.53) 4.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.07 mph (30.7 km/h) |
| 25 mph (40.23 km/h) | 23.84 mph (38.37 km/h) |
| 30 mph (48.28 km/h) | 28.61 mph (46.05 km/h) |
| 35 mph (56.33 km/h) | 33.38 mph (53.72 km/h) |
| 40 mph (64.37 km/h) | 38.15 mph (61.39 km/h) |
| 45 mph (72.42 km/h) | 42.92 mph (69.07 km/h) |
| 50 mph (80.47 km/h) | 47.69 mph (76.74 km/h) |
| 55 mph (88.51 km/h) | 52.45 mph (84.42 km/h) |
| 60 mph (96.56 km/h) | 57.22 mph (92.09 km/h) |
| 65 mph (104.61 km/h) | 61.99 mph (99.77 km/h) |
| 70 mph (112.65 km/h) | 66.76 mph (107.44 km/h) |
| 75 mph (120.7 km/h) | 71.53 mph (115.11 km/h) |
| 80 mph (128.75 km/h) | 76.3 mph (122.79 km/h) |
| 85 mph (136.79 km/h) | 81.07 mph (130.46 km/h) |
| 90 mph (144.84 km/h) | 85.83 mph (138.14 km/h) |
| 95 mph (152.89 km/h) | 90.6 mph (145.81 km/h) |
| 100 mph (160.93 km/h) | 95.37 mph (153.49 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2259 | 2625 | 2827 | 2952 | 3086 | 3182 | 3288 | 3413 | 3586 | 3759 | 3951 | 4105 | 4384 | 4692 | 4932 | 5086 | 5172 | 5490 | 5932 | 6893 |
Better Fuel Economy Factory Ratios Increased Power
