Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 130/80-18 | 120/90-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.19 (665.2) | 26.5 (673.2) | 0.31 (8) 1.2% |
| Width inches (mm) | 5.12 (130) | 4.72 (120) | -0.39 (-10) -7.7% |
| Circum. inches (mm) | 82.28 (2089.79) | 83.26 (2114.92) | 0.99 (25.13) 1.2% |
| Sidewall Height inches (mm) | 4.09 (104) | 4.25 (108) | 0.16 (4) 3.8% |
| Revolutions per mile (km) | 770.1 (478.52) | 760.95 (472.83) | -9.15 (-5.69) -1.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.24 mph (32.57 km/h) |
| 25 mph (40.23 km/h) | 25.3 mph (40.72 km/h) |
| 30 mph (48.28 km/h) | 30.36 mph (48.86 km/h) |
| 35 mph (56.33 km/h) | 35.42 mph (57 km/h) |
| 40 mph (64.37 km/h) | 40.48 mph (65.15 km/h) |
| 45 mph (72.42 km/h) | 45.54 mph (73.29 km/h) |
| 50 mph (80.47 km/h) | 50.6 mph (81.44 km/h) |
| 55 mph (88.51 km/h) | 55.66 mph (89.58 km/h) |
| 60 mph (96.56 km/h) | 60.72 mph (97.72 km/h) |
| 65 mph (104.61 km/h) | 65.78 mph (105.87 km/h) |
| 70 mph (112.65 km/h) | 70.84 mph (114.01 km/h) |
| 75 mph (120.7 km/h) | 75.9 mph (122.15 km/h) |
| 80 mph (128.75 km/h) | 80.96 mph (130.3 km/h) |
| 85 mph (136.79 km/h) | 86.02 mph (138.44 km/h) |
| 90 mph (144.84 km/h) | 91.08 mph (146.58 km/h) |
| 95 mph (152.89 km/h) | 96.14 mph (154.73 km/h) |
| 100 mph (160.93 km/h) | 101.2 mph (162.87 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1936 | 2250 | 2423 | 2530 | 2645 | 2728 | 2818 | 2925 | 3074 | 3222 | 3387 | 3519 | 3758 | 4021 | 4227 | 4359 | 4433 | 4705 | 5084 | 5908 |
Better Fuel Economy Factory Ratios Increased Power
