Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/80-10 | 165/70-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.13 (486) | 21.09 (535.8) | 1.96 (49.8) 10.2% |
| Width inches (mm) | 5.71 (145) | 6.5 (165) | 0.79 (20) 13.8% |
| Circum. inches (mm) | 60.11 (1526.81) | 66.27 (1683.27) | 6.16 (156.45) 10.2% |
| Sidewall Height inches (mm) | 4.57 (116) | 4.55 (115.5) | -0.02 (-0.5) -0.4% |
| Revolutions per mile (km) | 1054.05 (654.96) | 956.08 (594.08) | -97.97 (-60.88) -9.3% |
165/70-12 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.05 mph (35.49 km/h) |
| 25 mph (40.23 km/h) | 27.56 mph (44.36 km/h) |
| 30 mph (48.28 km/h) | 33.07 mph (53.23 km/h) |
| 35 mph (56.33 km/h) | 38.59 mph (62.1 km/h) |
| 40 mph (64.37 km/h) | 44.1 mph (70.97 km/h) |
| 45 mph (72.42 km/h) | 49.61 mph (79.84 km/h) |
| 50 mph (80.47 km/h) | 55.12 mph (88.71 km/h) |
| 55 mph (88.51 km/h) | 60.64 mph (97.58 km/h) |
| 60 mph (96.56 km/h) | 66.15 mph (106.46 km/h) |
| 65 mph (104.61 km/h) | 71.66 mph (115.33 km/h) |
| 70 mph (112.65 km/h) | 77.17 mph (124.2 km/h) |
| 75 mph (120.7 km/h) | 82.69 mph (133.07 km/h) |
| 80 mph (128.75 km/h) | 88.2 mph (141.94 km/h) |
| 85 mph (136.79 km/h) | 93.71 mph (150.81 km/h) |
| 90 mph (144.84 km/h) | 99.22 mph (159.68 km/h) |
| 95 mph (152.89 km/h) | 104.73 mph (168.55 km/h) |
| 100 mph (160.93 km/h) | 110.25 mph (177.43 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
