Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 130/80-18 | 130/90-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.19 (665.2) | 27.21 (691.2) | 1.02 (26) 3.9% |
| Width inches (mm) | 5.12 (130) | 5.12 (130) | 0 (0) 0% |
| Circum. inches (mm) | 82.28 (2089.79) | 85.49 (2171.47) | 3.22 (81.68) 3.9% |
| Sidewall Height inches (mm) | 4.09 (104) | 4.61 (117) | 0.51 (13) 12.5% |
| Revolutions per mile (km) | 770.1 (478.52) | 741.13 (460.52) | -28.97 (-18) -3.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.78 mph (33.45 km/h) |
| 25 mph (40.23 km/h) | 25.98 mph (41.81 km/h) |
| 30 mph (48.28 km/h) | 31.17 mph (50.17 km/h) |
| 35 mph (56.33 km/h) | 36.37 mph (58.53 km/h) |
| 40 mph (64.37 km/h) | 41.56 mph (66.89 km/h) |
| 45 mph (72.42 km/h) | 46.76 mph (75.25 km/h) |
| 50 mph (80.47 km/h) | 51.95 mph (83.61 km/h) |
| 55 mph (88.51 km/h) | 57.15 mph (91.97 km/h) |
| 60 mph (96.56 km/h) | 62.35 mph (100.34 km/h) |
| 65 mph (104.61 km/h) | 67.54 mph (108.7 km/h) |
| 70 mph (112.65 km/h) | 72.74 mph (117.06 km/h) |
| 75 mph (120.7 km/h) | 77.93 mph (125.42 km/h) |
| 80 mph (128.75 km/h) | 83.13 mph (133.78 km/h) |
| 85 mph (136.79 km/h) | 88.32 mph (142.14 km/h) |
| 90 mph (144.84 km/h) | 93.52 mph (150.5 km/h) |
| 95 mph (152.89 km/h) | 98.71 mph (158.86 km/h) |
| 100 mph (160.93 km/h) | 103.91 mph (167.23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1886 | 2191 | 2360 | 2464 | 2576 | 2657 | 2745 | 2849 | 2994 | 3138 | 3299 | 3427 | 3660 | 3917 | 4117 | 4246 | 4318 | 4583 | 4952 | 5754 |
Better Fuel Economy Factory Ratios Increased Power
