Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/70-12 | 165/80-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.09 (535.8) | 22.39 (568.8) | 1.3 (33) 6.2% |
| Width inches (mm) | 6.5 (165) | 6.5 (165) | 0 (0) 0% |
| Circum. inches (mm) | 66.27 (1683.27) | 70.35 (1786.94) | 4.08 (103.67) 6.2% |
| Sidewall Height inches (mm) | 4.55 (115.5) | 5.2 (132) | 0.65 (16.5) 14.3% |
| Revolutions per mile (km) | 956.08 (594.08) | 900.62 (559.62) | -55.47 (-34.47) -5.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.23 mph (34.17 km/h) |
| 25 mph (40.23 km/h) | 26.54 mph (42.71 km/h) |
| 30 mph (48.28 km/h) | 31.85 mph (51.25 km/h) |
| 35 mph (56.33 km/h) | 37.16 mph (59.8 km/h) |
| 40 mph (64.37 km/h) | 42.46 mph (68.34 km/h) |
| 45 mph (72.42 km/h) | 47.77 mph (76.88 km/h) |
| 50 mph (80.47 km/h) | 53.08 mph (85.42 km/h) |
| 55 mph (88.51 km/h) | 58.39 mph (93.97 km/h) |
| 60 mph (96.56 km/h) | 63.7 mph (102.51 km/h) |
| 65 mph (104.61 km/h) | 69 mph (111.05 km/h) |
| 70 mph (112.65 km/h) | 74.31 mph (119.59 km/h) |
| 75 mph (120.7 km/h) | 79.62 mph (128.14 km/h) |
| 80 mph (128.75 km/h) | 84.93 mph (136.68 km/h) |
| 85 mph (136.79 km/h) | 90.24 mph (145.22 km/h) |
| 90 mph (144.84 km/h) | 95.54 mph (153.76 km/h) |
| 95 mph (152.89 km/h) | 100.85 mph (162.3 km/h) |
| 100 mph (160.93 km/h) | 106.16 mph (170.85 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
