Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/60-12 | 150/100-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 17.67 (448.8) | 23.81 (604.8) | 6.14 (156) 34.8% |
| Width inches (mm) | 4.72 (120) | 5.91 (150) | 1.18 (30) 25% |
| Circum. inches (mm) | 55.51 (1409.95) | 74.8 (1900.04) | 19.29 (490.09) 34.8% |
| Sidewall Height inches (mm) | 2.83 (72) | 5.91 (150) | 3.07 (78) 108.3% |
| Revolutions per mile (km) | 1141.42 (709.25) | 847.01 (526.31) | -294.41 (-182.94) -25.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 26.95 mph (43.37 km/h) |
| 25 mph (40.23 km/h) | 33.69 mph (54.22 km/h) |
| 30 mph (48.28 km/h) | 40.43 mph (65.06 km/h) |
| 35 mph (56.33 km/h) | 47.17 mph (75.91 km/h) |
| 40 mph (64.37 km/h) | 53.9 mph (86.75 km/h) |
| 45 mph (72.42 km/h) | 60.64 mph (97.59 km/h) |
| 50 mph (80.47 km/h) | 67.38 mph (108.44 km/h) |
| 55 mph (88.51 km/h) | 74.12 mph (119.28 km/h) |
| 60 mph (96.56 km/h) | 80.86 mph (130.12 km/h) |
| 65 mph (104.61 km/h) | 87.59 mph (140.97 km/h) |
| 70 mph (112.65 km/h) | 94.33 mph (151.81 km/h) |
| 75 mph (120.7 km/h) | 101.07 mph (162.66 km/h) |
| 80 mph (128.75 km/h) | 107.81 mph (173.5 km/h) |
| 85 mph (136.79 km/h) | 114.55 mph (184.34 km/h) |
| 90 mph (144.84 km/h) | 121.28 mph (195.19 km/h) |
| 95 mph (152.89 km/h) | 128.02 mph (206.03 km/h) |
| 100 mph (160.93 km/h) | 134.76 mph (216.87 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2155 | 2504 | 2697 | 2816 | 2944 | 3036 | 3137 | 3256 | 3421 | 3586 | 3770 | 3917 | 4183 | 4476 | 4705 | 4852 | 4935 | 5237 | 5659 | 6576 |
Better Fuel Economy Factory Ratios Increased Power
