Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 70/90-19 | 100/80-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.96 (608.6) | 24.3 (617.2) | 0.34 (8.6) 1.4% |
| Width inches (mm) | 2.76 (70) | 3.94 (100) | 1.18 (30) 42.9% |
| Circum. inches (mm) | 75.27 (1911.97) | 76.34 (1938.99) | 1.06 (27.02) 1.4% |
| Sidewall Height inches (mm) | 2.48 (63) | 3.15 (80) | 0.67 (17) 27% |
| Revolutions per mile (km) | 841.72 (523.02) | 829.99 (515.73) | -11.73 (-7.29) -1.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.28 mph (32.64 km/h) |
| 25 mph (40.23 km/h) | 25.35 mph (40.8 km/h) |
| 30 mph (48.28 km/h) | 30.42 mph (48.96 km/h) |
| 35 mph (56.33 km/h) | 35.49 mph (57.12 km/h) |
| 40 mph (64.37 km/h) | 40.57 mph (65.28 km/h) |
| 45 mph (72.42 km/h) | 45.64 mph (73.44 km/h) |
| 50 mph (80.47 km/h) | 50.71 mph (81.6 km/h) |
| 55 mph (88.51 km/h) | 55.78 mph (89.76 km/h) |
| 60 mph (96.56 km/h) | 60.85 mph (97.93 km/h) |
| 65 mph (104.61 km/h) | 65.92 mph (106.09 km/h) |
| 70 mph (112.65 km/h) | 70.99 mph (114.25 km/h) |
| 75 mph (120.7 km/h) | 76.06 mph (122.41 km/h) |
| 80 mph (128.75 km/h) | 81.13 mph (130.57 km/h) |
| 85 mph (136.79 km/h) | 86.2 mph (138.73 km/h) |
| 90 mph (144.84 km/h) | 91.27 mph (146.89 km/h) |
| 95 mph (152.89 km/h) | 96.34 mph (155.05 km/h) |
| 100 mph (160.93 km/h) | 101.41 mph (163.21 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2112 | 2454 | 2642 | 2759 | 2885 | 2975 | 3074 | 3191 | 3353 | 3514 | 3694 | 3838 | 4099 | 4386 | 4611 | 4755 | 4836 | 5132 | 5546 | 6444 |
Better Fuel Economy Factory Ratios Increased Power
