Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-10 | 145/70-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.13 (486) | 19.99 (507.8) | 0.86 (21.8) 4.5% |
| Width inches (mm) | 5.71 (145) | 5.71 (145) | 0 (0) 0% |
| Circum. inches (mm) | 60.11 (1526.81) | 62.81 (1595.3) | 2.7 (68.49) 4.5% |
| Sidewall Height inches (mm) | 4.57 (116) | 4 (101.5) | -0.57 (-14.5) -12.5% |
| Revolutions per mile (km) | 1054.05 (654.96) | 1008.8 (626.84) | -45.25 (-28.12) -4.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.9 mph (33.63 km/h) |
| 25 mph (40.23 km/h) | 26.12 mph (42.04 km/h) |
| 30 mph (48.28 km/h) | 31.35 mph (50.45 km/h) |
| 35 mph (56.33 km/h) | 36.57 mph (58.85 km/h) |
| 40 mph (64.37 km/h) | 41.79 mph (67.26 km/h) |
| 45 mph (72.42 km/h) | 47.02 mph (75.67 km/h) |
| 50 mph (80.47 km/h) | 52.24 mph (84.08 km/h) |
| 55 mph (88.51 km/h) | 57.47 mph (92.48 km/h) |
| 60 mph (96.56 km/h) | 62.69 mph (100.89 km/h) |
| 65 mph (104.61 km/h) | 67.92 mph (109.3 km/h) |
| 70 mph (112.65 km/h) | 73.14 mph (117.71 km/h) |
| 75 mph (120.7 km/h) | 78.36 mph (126.12 km/h) |
| 80 mph (128.75 km/h) | 83.59 mph (134.52 km/h) |
| 85 mph (136.79 km/h) | 88.81 mph (142.93 km/h) |
| 90 mph (144.84 km/h) | 94.04 mph (151.34 km/h) |
| 95 mph (152.89 km/h) | 99.26 mph (159.75 km/h) |
| 100 mph (160.93 km/h) | 104.49 mph (168.15 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
