Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/70-18 | 125/70-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.99 (660.2) | 25.89 (657.6) | -0.1 (-2.6) -0.4% |
| Width inches (mm) | 5.71 (145) | 4.92 (125) | -0.79 (-20) -13.8% |
| Circum. inches (mm) | 81.66 (2074.08) | 81.34 (2065.91) | -0.32 (-8.17) -0.4% |
| Sidewall Height inches (mm) | 4 (101.5) | 3.44 (87.5) | -0.55 (-14) -13.8% |
| Revolutions per mile (km) | 775.93 (482.14) | 779 (484.05) | 3.07 (1.91) 0.4% |
125/70-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.92 mph (32.06 km/h) |
| 25 mph (40.23 km/h) | 24.9 mph (40.08 km/h) |
| 30 mph (48.28 km/h) | 29.88 mph (48.09 km/h) |
| 35 mph (56.33 km/h) | 34.86 mph (56.11 km/h) |
| 40 mph (64.37 km/h) | 39.84 mph (64.12 km/h) |
| 45 mph (72.42 km/h) | 44.82 mph (72.14 km/h) |
| 50 mph (80.47 km/h) | 49.8 mph (80.15 km/h) |
| 55 mph (88.51 km/h) | 54.78 mph (88.17 km/h) |
| 60 mph (96.56 km/h) | 59.76 mph (96.18 km/h) |
| 65 mph (104.61 km/h) | 64.74 mph (104.2 km/h) |
| 70 mph (112.65 km/h) | 69.72 mph (112.21 km/h) |
| 75 mph (120.7 km/h) | 74.7 mph (120.23 km/h) |
| 80 mph (128.75 km/h) | 79.68 mph (128.24 km/h) |
| 85 mph (136.79 km/h) | 84.67 mph (136.26 km/h) |
| 90 mph (144.84 km/h) | 89.65 mph (144.27 km/h) |
| 95 mph (152.89 km/h) | 94.63 mph (152.29 km/h) |
| 100 mph (160.93 km/h) | 99.61 mph (160.3 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1982 | 2303 | 2480 | 2590 | 2708 | 2792 | 2885 | 2995 | 3147 | 3298 | 3467 | 3602 | 3847 | 4117 | 4328 | 4463 | 4538 | 4817 | 5205 | 6048 |
Better Fuel Economy Factory Ratios Increased Power
