Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 130/80-18 | 140/80-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.19 (665.2) | 26.82 (681.2) | 0.63 (16) 2.4% |
| Width inches (mm) | 5.12 (130) | 5.51 (140) | 0.39 (10) 7.7% |
| Circum. inches (mm) | 82.28 (2089.79) | 84.25 (2140.05) | 1.98 (50.27) 2.4% |
| Sidewall Height inches (mm) | 4.09 (104) | 4.41 (112) | 0.31 (8) 7.7% |
| Revolutions per mile (km) | 770.1 (478.52) | 752.01 (467.28) | -18.09 (-11.24) -2.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.48 mph (32.96 km/h) |
| 25 mph (40.23 km/h) | 25.6 mph (41.2 km/h) |
| 30 mph (48.28 km/h) | 30.72 mph (49.44 km/h) |
| 35 mph (56.33 km/h) | 35.84 mph (57.68 km/h) |
| 40 mph (64.37 km/h) | 40.96 mph (65.92 km/h) |
| 45 mph (72.42 km/h) | 46.08 mph (74.16 km/h) |
| 50 mph (80.47 km/h) | 51.2 mph (82.4 km/h) |
| 55 mph (88.51 km/h) | 56.32 mph (90.64 km/h) |
| 60 mph (96.56 km/h) | 61.44 mph (98.88 km/h) |
| 65 mph (104.61 km/h) | 66.56 mph (107.12 km/h) |
| 70 mph (112.65 km/h) | 71.68 mph (115.36 km/h) |
| 75 mph (120.7 km/h) | 76.8 mph (123.6 km/h) |
| 80 mph (128.75 km/h) | 81.92 mph (131.84 km/h) |
| 85 mph (136.79 km/h) | 87.04 mph (140.08 km/h) |
| 90 mph (144.84 km/h) | 92.16 mph (148.33 km/h) |
| 95 mph (152.89 km/h) | 97.29 mph (156.57 km/h) |
| 100 mph (160.93 km/h) | 102.41 mph (164.81 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1914 | 2223 | 2394 | 2500 | 2614 | 2696 | 2785 | 2891 | 3038 | 3184 | 3347 | 3477 | 3713 | 3974 | 4178 | 4308 | 4381 | 4650 | 5025 | 5839 |
Better Fuel Economy Factory Ratios Increased Power
