Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 90/90-12 | 120/70-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 18.38 (466.8) | 18.61 (472.8) | 0.24 (6) 1.3% |
| Width inches (mm) | 3.54 (90) | 4.72 (120) | 1.18 (30) 33.3% |
| Circum. inches (mm) | 57.74 (1466.5) | 58.48 (1485.35) | 0.74 (18.85) 1.3% |
| Sidewall Height inches (mm) | 3.19 (81) | 3.31 (84) | 0.12 (3) 3.7% |
| Revolutions per mile (km) | 1097.41 (681.9) | 1083.48 (673.24) | -13.93 (-8.65) -1.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.26 mph (32.6 km/h) |
| 25 mph (40.23 km/h) | 25.32 mph (40.75 km/h) |
| 30 mph (48.28 km/h) | 30.39 mph (48.9 km/h) |
| 35 mph (56.33 km/h) | 35.45 mph (57.05 km/h) |
| 40 mph (64.37 km/h) | 40.51 mph (65.2 km/h) |
| 45 mph (72.42 km/h) | 45.58 mph (73.35 km/h) |
| 50 mph (80.47 km/h) | 50.64 mph (81.5 km/h) |
| 55 mph (88.51 km/h) | 55.71 mph (89.65 km/h) |
| 60 mph (96.56 km/h) | 60.77 mph (97.8 km/h) |
| 65 mph (104.61 km/h) | 65.84 mph (105.95 km/h) |
| 70 mph (112.65 km/h) | 70.9 mph (114.1 km/h) |
| 75 mph (120.7 km/h) | 75.96 mph (122.25 km/h) |
| 80 mph (128.75 km/h) | 81.03 mph (130.4 km/h) |
| 85 mph (136.79 km/h) | 86.09 mph (138.55 km/h) |
| 90 mph (144.84 km/h) | 91.16 mph (146.7 km/h) |
| 95 mph (152.89 km/h) | 96.22 mph (154.85 km/h) |
| 100 mph (160.93 km/h) | 101.29 mph (163 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
