Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/90-18 | 130/90-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.5 (673.2) | 27.21 (691.2) | 0.71 (18) 2.7% |
| Width inches (mm) | 4.72 (120) | 5.12 (130) | 0.39 (10) 8.3% |
| Circum. inches (mm) | 83.26 (2114.92) | 85.49 (2171.47) | 2.23 (56.55) 2.7% |
| Sidewall Height inches (mm) | 4.25 (108) | 4.61 (117) | 0.35 (9) 8.3% |
| Revolutions per mile (km) | 760.95 (472.83) | 741.13 (460.52) | -19.82 (-12.31) -2.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.53 mph (33.05 km/h) |
| 25 mph (40.23 km/h) | 25.67 mph (41.31 km/h) |
| 30 mph (48.28 km/h) | 30.8 mph (49.57 km/h) |
| 35 mph (56.33 km/h) | 35.94 mph (57.83 km/h) |
| 40 mph (64.37 km/h) | 41.07 mph (66.1 km/h) |
| 45 mph (72.42 km/h) | 46.2 mph (74.36 km/h) |
| 50 mph (80.47 km/h) | 51.34 mph (82.62 km/h) |
| 55 mph (88.51 km/h) | 56.47 mph (90.88 km/h) |
| 60 mph (96.56 km/h) | 61.6 mph (99.14 km/h) |
| 65 mph (104.61 km/h) | 66.74 mph (107.4 km/h) |
| 70 mph (112.65 km/h) | 71.87 mph (115.67 km/h) |
| 75 mph (120.7 km/h) | 77.01 mph (123.93 km/h) |
| 80 mph (128.75 km/h) | 82.14 mph (132.19 km/h) |
| 85 mph (136.79 km/h) | 87.27 mph (140.45 km/h) |
| 90 mph (144.84 km/h) | 92.41 mph (148.71 km/h) |
| 95 mph (152.89 km/h) | 97.54 mph (156.98 km/h) |
| 100 mph (160.93 km/h) | 102.67 mph (165.24 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
