Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/80-19 | 150/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.56 (674.6) | 26.27 (667.2) | -0.29 (-7.4) -1.1% |
| Width inches (mm) | 4.72 (120) | 5.91 (150) | 1.18 (30) 25% |
| Circum. inches (mm) | 83.44 (2119.32) | 82.52 (2096.07) | -0.92 (-23.25) -1.1% |
| Sidewall Height inches (mm) | 3.78 (96) | 4.13 (105) | 0.35 (9) 9.4% |
| Revolutions per mile (km) | 759.37 (471.85) | 767.79 (477.08) | 8.42 (5.23) 1.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.78 mph (31.83 km/h) |
| 25 mph (40.23 km/h) | 24.73 mph (39.79 km/h) |
| 30 mph (48.28 km/h) | 29.67 mph (47.75 km/h) |
| 35 mph (56.33 km/h) | 34.62 mph (55.71 km/h) |
| 40 mph (64.37 km/h) | 39.56 mph (63.67 km/h) |
| 45 mph (72.42 km/h) | 44.51 mph (71.63 km/h) |
| 50 mph (80.47 km/h) | 49.45 mph (79.58 km/h) |
| 55 mph (88.51 km/h) | 54.4 mph (87.54 km/h) |
| 60 mph (96.56 km/h) | 59.34 mph (95.5 km/h) |
| 65 mph (104.61 km/h) | 64.29 mph (103.46 km/h) |
| 70 mph (112.65 km/h) | 69.23 mph (111.42 km/h) |
| 75 mph (120.7 km/h) | 74.18 mph (119.38 km/h) |
| 80 mph (128.75 km/h) | 79.12 mph (127.34 km/h) |
| 85 mph (136.79 km/h) | 84.07 mph (135.29 km/h) |
| 90 mph (144.84 km/h) | 89.01 mph (143.25 km/h) |
| 95 mph (152.89 km/h) | 93.96 mph (151.21 km/h) |
| 100 mph (160.93 km/h) | 98.9 mph (159.17 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
