Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/60-12 | 180/60-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.8 (502.8) | 20.5 (520.8) | 0.71 (18) 3.6% |
| Width inches (mm) | 6.5 (165) | 7.09 (180) | 0.59 (15) 9.1% |
| Circum. inches (mm) | 62.19 (1579.59) | 64.42 (1636.14) | 2.23 (56.55) 3.6% |
| Sidewall Height inches (mm) | 3.9 (99) | 4.25 (108) | 0.35 (9) 9.1% |
| Revolutions per mile (km) | 1018.83 (633.07) | 983.62 (611.19) | -35.21 (-21.88) -3.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.72 mph (33.34 km/h) |
| 25 mph (40.23 km/h) | 25.89 mph (41.67 km/h) |
| 30 mph (48.28 km/h) | 31.07 mph (50.01 km/h) |
| 35 mph (56.33 km/h) | 36.25 mph (58.34 km/h) |
| 40 mph (64.37 km/h) | 41.43 mph (66.68 km/h) |
| 45 mph (72.42 km/h) | 46.61 mph (75.01 km/h) |
| 50 mph (80.47 km/h) | 51.79 mph (83.35 km/h) |
| 55 mph (88.51 km/h) | 56.97 mph (91.68 km/h) |
| 60 mph (96.56 km/h) | 62.15 mph (100.02 km/h) |
| 65 mph (104.61 km/h) | 67.33 mph (108.35 km/h) |
| 70 mph (112.65 km/h) | 72.51 mph (116.69 km/h) |
| 75 mph (120.7 km/h) | 77.68 mph (125.02 km/h) |
| 80 mph (128.75 km/h) | 82.86 mph (133.36 km/h) |
| 85 mph (136.79 km/h) | 88.04 mph (141.69 km/h) |
| 90 mph (144.84 km/h) | 93.22 mph (150.03 km/h) |
| 95 mph (152.89 km/h) | 98.4 mph (158.36 km/h) |
| 100 mph (160.93 km/h) | 103.58 mph (166.7 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
