Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/70-12 | 205/45-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.09 (535.8) | 19.26 (489.3) | -1.83 (-46.5) -8.7% |
| Width inches (mm) | 6.5 (165) | 8.07 (205) | 1.57 (40) 24.2% |
| Circum. inches (mm) | 66.27 (1683.27) | 60.52 (1537.18) | -5.75 (-146.08) -8.7% |
| Sidewall Height inches (mm) | 4.55 (115.5) | 3.63 (92.25) | -0.92 (-23.25) -20.1% |
| Revolutions per mile (km) | 956.08 (594.08) | 1046.94 (650.54) | 90.86 (56.46) 9.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.26 mph (29.39 km/h) |
| 25 mph (40.23 km/h) | 22.83 mph (36.74 km/h) |
| 30 mph (48.28 km/h) | 27.4 mph (44.09 km/h) |
| 35 mph (56.33 km/h) | 31.96 mph (51.44 km/h) |
| 40 mph (64.37 km/h) | 36.53 mph (58.79 km/h) |
| 45 mph (72.42 km/h) | 41.09 mph (66.14 km/h) |
| 50 mph (80.47 km/h) | 45.66 mph (73.48 km/h) |
| 55 mph (88.51 km/h) | 50.23 mph (80.83 km/h) |
| 60 mph (96.56 km/h) | 54.79 mph (88.18 km/h) |
| 65 mph (104.61 km/h) | 59.36 mph (95.53 km/h) |
| 70 mph (112.65 km/h) | 63.92 mph (102.88 km/h) |
| 75 mph (120.7 km/h) | 68.49 mph (110.23 km/h) |
| 80 mph (128.75 km/h) | 73.06 mph (117.57 km/h) |
| 85 mph (136.79 km/h) | 77.62 mph (124.92 km/h) |
| 90 mph (144.84 km/h) | 82.19 mph (132.27 km/h) |
| 95 mph (152.89 km/h) | 86.76 mph (139.62 km/h) |
| 100 mph (160.93 km/h) | 91.32 mph (146.97 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
