Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 90/80-16 | 45/75-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.67 (550.4) | 18.66 (473.9) | -3.01 (-76.5) -13.9% |
| Width inches (mm) | 3.54 (90) | 1.77 (45) | -1.77 (-45) -50% |
| Circum. inches (mm) | 68.08 (1729.13) | 58.61 (1488.8) | -9.46 (-240.33) -13.9% |
| Sidewall Height inches (mm) | 2.83 (72) | 1.33 (33.75) | -1.51 (-38.25) -53.1% |
| Revolutions per mile (km) | 930.72 (578.32) | 1080.97 (671.68) | 150.24 (93.36) 16.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.22 mph (27.71 km/h) |
| 25 mph (40.23 km/h) | 21.53 mph (34.64 km/h) |
| 30 mph (48.28 km/h) | 25.83 mph (41.57 km/h) |
| 35 mph (56.33 km/h) | 30.14 mph (48.5 km/h) |
| 40 mph (64.37 km/h) | 34.44 mph (55.43 km/h) |
| 45 mph (72.42 km/h) | 38.75 mph (62.35 km/h) |
| 50 mph (80.47 km/h) | 43.05 mph (69.28 km/h) |
| 55 mph (88.51 km/h) | 47.36 mph (76.21 km/h) |
| 60 mph (96.56 km/h) | 51.66 mph (83.14 km/h) |
| 65 mph (104.61 km/h) | 55.97 mph (90.07 km/h) |
| 70 mph (112.65 km/h) | 60.27 mph (97 km/h) |
| 75 mph (120.7 km/h) | 64.58 mph (103.92 km/h) |
| 80 mph (128.75 km/h) | 68.88 mph (110.85 km/h) |
| 85 mph (136.79 km/h) | 73.19 mph (117.78 km/h) |
| 90 mph (144.84 km/h) | 77.49 mph (124.71 km/h) |
| 95 mph (152.89 km/h) | 81.8 mph (131.64 km/h) |
| 100 mph (160.93 km/h) | 86.1 mph (138.57 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
