Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/70-12 | 170/80-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.09 (535.8) | 22.71 (576.8) | 1.61 (41) 7.7% |
| Width inches (mm) | 6.5 (165) | 6.69 (170) | 0.2 (5) 3% |
| Circum. inches (mm) | 66.27 (1683.27) | 71.34 (1812.07) | 5.07 (128.81) 7.7% |
| Sidewall Height inches (mm) | 4.55 (115.5) | 5.35 (136) | 0.81 (20.5) 17.7% |
| Revolutions per mile (km) | 956.08 (594.08) | 888.12 (551.85) | -67.96 (-42.23) -7.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.53 mph (34.65 km/h) |
| 25 mph (40.23 km/h) | 26.91 mph (43.31 km/h) |
| 30 mph (48.28 km/h) | 32.3 mph (51.97 km/h) |
| 35 mph (56.33 km/h) | 37.68 mph (60.64 km/h) |
| 40 mph (64.37 km/h) | 43.06 mph (69.3 km/h) |
| 45 mph (72.42 km/h) | 48.44 mph (77.96 km/h) |
| 50 mph (80.47 km/h) | 53.83 mph (86.62 km/h) |
| 55 mph (88.51 km/h) | 59.21 mph (95.29 km/h) |
| 60 mph (96.56 km/h) | 64.59 mph (103.95 km/h) |
| 65 mph (104.61 km/h) | 69.97 mph (112.61 km/h) |
| 70 mph (112.65 km/h) | 75.36 mph (121.27 km/h) |
| 75 mph (120.7 km/h) | 80.74 mph (129.94 km/h) |
| 80 mph (128.75 km/h) | 86.12 mph (138.6 km/h) |
| 85 mph (136.79 km/h) | 91.5 mph (147.26 km/h) |
| 90 mph (144.84 km/h) | 96.89 mph (155.92 km/h) |
| 95 mph (152.89 km/h) | 102.27 mph (164.59 km/h) |
| 100 mph (160.93 km/h) | 107.65 mph (173.25 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2260 | 2626 | 2828 | 2953 | 3087 | 3183 | 3289 | 3414 | 3587 | 3760 | 3953 | 4107 | 4386 | 4693 | 4934 | 5088 | 5174 | 5492 | 5934 | 6896 |
Better Fuel Economy Factory Ratios Increased Power
