Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/70-12 | 145/70-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.09 (535.8) | 19.99 (507.8) | -1.1 (-28) -5.2% |
| Width inches (mm) | 6.5 (165) | 5.71 (145) | -0.79 (-20) -12.1% |
| Circum. inches (mm) | 66.27 (1683.27) | 62.81 (1595.3) | -3.46 (-87.96) -5.2% |
| Sidewall Height inches (mm) | 4.55 (115.5) | 4 (101.5) | -0.55 (-14) -12.1% |
| Revolutions per mile (km) | 956.08 (594.08) | 1008.8 (626.84) | 52.72 (32.76) 5.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.95 mph (30.5 km/h) |
| 25 mph (40.23 km/h) | 23.69 mph (38.13 km/h) |
| 30 mph (48.28 km/h) | 28.43 mph (45.76 km/h) |
| 35 mph (56.33 km/h) | 33.17 mph (53.38 km/h) |
| 40 mph (64.37 km/h) | 37.91 mph (61.01 km/h) |
| 45 mph (72.42 km/h) | 42.65 mph (68.64 km/h) |
| 50 mph (80.47 km/h) | 47.39 mph (76.26 km/h) |
| 55 mph (88.51 km/h) | 52.13 mph (83.89 km/h) |
| 60 mph (96.56 km/h) | 56.86 mph (91.51 km/h) |
| 65 mph (104.61 km/h) | 61.6 mph (99.14 km/h) |
| 70 mph (112.65 km/h) | 66.34 mph (106.77 km/h) |
| 75 mph (120.7 km/h) | 71.08 mph (114.39 km/h) |
| 80 mph (128.75 km/h) | 75.82 mph (122.02 km/h) |
| 85 mph (136.79 km/h) | 80.56 mph (129.65 km/h) |
| 90 mph (144.84 km/h) | 85.3 mph (137.27 km/h) |
| 95 mph (152.89 km/h) | 90.04 mph (144.9 km/h) |
| 100 mph (160.93 km/h) | 94.77 mph (152.52 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
