Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 130/80-18 | 150/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.19 (665.2) | 26.27 (667.2) | 0.08 (2) 0.3% |
| Width inches (mm) | 5.12 (130) | 5.91 (150) | 0.79 (20) 15.4% |
| Circum. inches (mm) | 82.28 (2089.79) | 82.52 (2096.07) | 0.25 (6.28) 0.3% |
| Sidewall Height inches (mm) | 4.09 (104) | 4.13 (105) | 0.04 (1) 1% |
| Revolutions per mile (km) | 770.1 (478.52) | 767.79 (477.08) | -2.31 (-1.43) -0.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.06 mph (32.28 km/h) |
| 25 mph (40.23 km/h) | 25.08 mph (40.35 km/h) |
| 30 mph (48.28 km/h) | 30.09 mph (48.43 km/h) |
| 35 mph (56.33 km/h) | 35.11 mph (56.5 km/h) |
| 40 mph (64.37 km/h) | 40.12 mph (64.57 km/h) |
| 45 mph (72.42 km/h) | 45.14 mph (72.64 km/h) |
| 50 mph (80.47 km/h) | 50.15 mph (80.71 km/h) |
| 55 mph (88.51 km/h) | 55.17 mph (88.78 km/h) |
| 60 mph (96.56 km/h) | 60.18 mph (96.85 km/h) |
| 65 mph (104.61 km/h) | 65.2 mph (104.92 km/h) |
| 70 mph (112.65 km/h) | 70.21 mph (112.99 km/h) |
| 75 mph (120.7 km/h) | 75.23 mph (121.06 km/h) |
| 80 mph (128.75 km/h) | 80.24 mph (129.13 km/h) |
| 85 mph (136.79 km/h) | 85.26 mph (137.21 km/h) |
| 90 mph (144.84 km/h) | 90.27 mph (145.28 km/h) |
| 95 mph (152.89 km/h) | 95.29 mph (153.35 km/h) |
| 100 mph (160.93 km/h) | 100.3 mph (161.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1954 | 2270 | 2444 | 2553 | 2669 | 2752 | 2844 | 2952 | 3101 | 3251 | 3417 | 3550 | 3791 | 4057 | 4265 | 4398 | 4473 | 4748 | 5130 | 5961 |
Better Fuel Economy Factory Ratios Increased Power
