Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 90/70-14 | 100/80-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 18.96 (481.6) | 20.3 (515.6) | 1.34 (34) 7.1% |
| Width inches (mm) | 3.54 (90) | 3.94 (100) | 0.39 (10) 11.1% |
| Circum. inches (mm) | 59.57 (1512.99) | 63.77 (1619.81) | 4.21 (106.81) 7.1% |
| Sidewall Height inches (mm) | 2.48 (63) | 3.15 (80) | 0.67 (17) 27% |
| Revolutions per mile (km) | 1063.68 (660.94) | 993.54 (617.36) | -70.14 (-43.58) -6.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.41 mph (34.46 km/h) |
| 25 mph (40.23 km/h) | 26.76 mph (43.07 km/h) |
| 30 mph (48.28 km/h) | 32.12 mph (51.69 km/h) |
| 35 mph (56.33 km/h) | 37.47 mph (60.3 km/h) |
| 40 mph (64.37 km/h) | 42.82 mph (68.92 km/h) |
| 45 mph (72.42 km/h) | 48.18 mph (77.53 km/h) |
| 50 mph (80.47 km/h) | 53.53 mph (86.15 km/h) |
| 55 mph (88.51 km/h) | 58.88 mph (94.76 km/h) |
| 60 mph (96.56 km/h) | 64.24 mph (103.38 km/h) |
| 65 mph (104.61 km/h) | 69.59 mph (111.99 km/h) |
| 70 mph (112.65 km/h) | 74.94 mph (120.61 km/h) |
| 75 mph (120.7 km/h) | 80.29 mph (129.22 km/h) |
| 80 mph (128.75 km/h) | 85.65 mph (137.84 km/h) |
| 85 mph (136.79 km/h) | 91 mph (146.45 km/h) |
| 90 mph (144.84 km/h) | 96.35 mph (155.07 km/h) |
| 95 mph (152.89 km/h) | 101.71 mph (163.68 km/h) |
| 100 mph (160.93 km/h) | 107.06 mph (172.3 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
