Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/65-12 | 145/65-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 18.4 (467.3) | 19.42 (493.3) | 1.02 (26) 5.6% |
| Width inches (mm) | 4.92 (125) | 5.71 (145) | 0.79 (20) 16% |
| Circum. inches (mm) | 57.8 (1468.07) | 61.01 (1549.75) | 3.22 (81.68) 5.6% |
| Sidewall Height inches (mm) | 3.2 (81.25) | 3.71 (94.25) | 0.51 (13) 16% |
| Revolutions per mile (km) | 1096.23 (681.17) | 1038.46 (645.27) | -57.78 (-35.9) -5.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.11 mph (33.98 km/h) |
| 25 mph (40.23 km/h) | 26.39 mph (42.47 km/h) |
| 30 mph (48.28 km/h) | 31.67 mph (50.97 km/h) |
| 35 mph (56.33 km/h) | 36.95 mph (59.46 km/h) |
| 40 mph (64.37 km/h) | 42.23 mph (67.96 km/h) |
| 45 mph (72.42 km/h) | 47.5 mph (76.45 km/h) |
| 50 mph (80.47 km/h) | 52.78 mph (84.94 km/h) |
| 55 mph (88.51 km/h) | 58.06 mph (93.44 km/h) |
| 60 mph (96.56 km/h) | 63.34 mph (101.93 km/h) |
| 65 mph (104.61 km/h) | 68.62 mph (110.43 km/h) |
| 70 mph (112.65 km/h) | 73.89 mph (118.92 km/h) |
| 75 mph (120.7 km/h) | 79.17 mph (127.42 km/h) |
| 80 mph (128.75 km/h) | 84.45 mph (135.91 km/h) |
| 85 mph (136.79 km/h) | 89.73 mph (144.41 km/h) |
| 90 mph (144.84 km/h) | 95.01 mph (152.9 km/h) |
| 95 mph (152.89 km/h) | 100.29 mph (161.39 km/h) |
| 100 mph (160.93 km/h) | 105.56 mph (169.89 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
