Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/55-12 | 165/80-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.15 (486.3) | 22.39 (568.8) | 3.25 (82.5) 17% |
| Width inches (mm) | 6.5 (165) | 6.5 (165) | 0 (0) 0% |
| Circum. inches (mm) | 60.15 (1527.76) | 70.35 (1786.94) | 10.2 (259.18) 17% |
| Sidewall Height inches (mm) | 3.57 (90.75) | 5.2 (132) | 1.62 (41.25) 45.5% |
| Revolutions per mile (km) | 1053.4 (654.55) | 900.62 (559.62) | -152.79 (-94.94) -14.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.39 mph (37.65 km/h) |
| 25 mph (40.23 km/h) | 29.24 mph (47.06 km/h) |
| 30 mph (48.28 km/h) | 35.09 mph (56.47 km/h) |
| 35 mph (56.33 km/h) | 40.94 mph (65.88 km/h) |
| 40 mph (64.37 km/h) | 46.79 mph (75.29 km/h) |
| 45 mph (72.42 km/h) | 52.63 mph (84.71 km/h) |
| 50 mph (80.47 km/h) | 58.48 mph (94.12 km/h) |
| 55 mph (88.51 km/h) | 64.33 mph (103.53 km/h) |
| 60 mph (96.56 km/h) | 70.18 mph (112.94 km/h) |
| 65 mph (104.61 km/h) | 76.03 mph (122.35 km/h) |
| 70 mph (112.65 km/h) | 81.88 mph (131.77 km/h) |
| 75 mph (120.7 km/h) | 87.72 mph (141.18 km/h) |
| 80 mph (128.75 km/h) | 93.57 mph (150.59 km/h) |
| 85 mph (136.79 km/h) | 99.42 mph (160 km/h) |
| 90 mph (144.84 km/h) | 105.27 mph (169.41 km/h) |
| 95 mph (152.89 km/h) | 111.12 mph (178.83 km/h) |
| 100 mph (160.93 km/h) | 116.96 mph (188.24 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2292 | 2662 | 2867 | 2994 | 3131 | 3228 | 3335 | 3462 | 3638 | 3813 | 4008 | 4164 | 4447 | 4759 | 5003 | 5159 | 5247 | 5569 | 6017 | 6993 |
Better Fuel Economy Factory Ratios Increased Power
