Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/65-12 | 145/65-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 18.4 (467.3) | 20.42 (518.7) | 2.02 (51.4) 11% |
| Width inches (mm) | 4.92 (125) | 5.71 (145) | 0.79 (20) 16% |
| Circum. inches (mm) | 57.8 (1468.07) | 64.16 (1629.54) | 6.36 (161.48) 11% |
| Sidewall Height inches (mm) | 3.2 (81.25) | 3.71 (94.25) | 0.51 (13) 16% |
| Revolutions per mile (km) | 1096.23 (681.17) | 987.6 (613.67) | -108.63 (-67.5) -9.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.2 mph (35.73 km/h) |
| 25 mph (40.23 km/h) | 27.75 mph (44.66 km/h) |
| 30 mph (48.28 km/h) | 33.3 mph (53.59 km/h) |
| 35 mph (56.33 km/h) | 38.85 mph (62.52 km/h) |
| 40 mph (64.37 km/h) | 44.4 mph (71.45 km/h) |
| 45 mph (72.42 km/h) | 49.95 mph (80.39 km/h) |
| 50 mph (80.47 km/h) | 55.5 mph (89.32 km/h) |
| 55 mph (88.51 km/h) | 61.05 mph (98.25 km/h) |
| 60 mph (96.56 km/h) | 66.6 mph (107.18 km/h) |
| 65 mph (104.61 km/h) | 72.15 mph (116.11 km/h) |
| 70 mph (112.65 km/h) | 77.7 mph (125.05 km/h) |
| 75 mph (120.7 km/h) | 83.25 mph (133.98 km/h) |
| 80 mph (128.75 km/h) | 88.8 mph (142.91 km/h) |
| 85 mph (136.79 km/h) | 94.35 mph (151.84 km/h) |
| 90 mph (144.84 km/h) | 99.9 mph (160.77 km/h) |
| 95 mph (152.89 km/h) | 105.45 mph (169.7 km/h) |
| 100 mph (160.93 km/h) | 111 mph (178.64 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
