Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 150/60-18 | 120/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.09 (637.2) | 23.67 (601.2) | -1.42 (-36) -5.6% |
| Width inches (mm) | 5.91 (150) | 4.72 (120) | -1.18 (-30) -20% |
| Circum. inches (mm) | 78.81 (2001.82) | 74.36 (1888.73) | -4.45 (-113.1) -5.6% |
| Sidewall Height inches (mm) | 3.54 (90) | 2.83 (72) | -0.71 (-18) -20% |
| Revolutions per mile (km) | 803.94 (499.54) | 852.08 (529.46) | 48.14 (29.91) 6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.87 mph (30.37 km/h) |
| 25 mph (40.23 km/h) | 23.59 mph (37.96 km/h) |
| 30 mph (48.28 km/h) | 28.31 mph (45.55 km/h) |
| 35 mph (56.33 km/h) | 33.02 mph (53.14 km/h) |
| 40 mph (64.37 km/h) | 37.74 mph (60.74 km/h) |
| 45 mph (72.42 km/h) | 42.46 mph (68.33 km/h) |
| 50 mph (80.47 km/h) | 47.18 mph (75.92 km/h) |
| 55 mph (88.51 km/h) | 51.89 mph (83.51 km/h) |
| 60 mph (96.56 km/h) | 56.61 mph (91.11 km/h) |
| 65 mph (104.61 km/h) | 61.33 mph (98.7 km/h) |
| 70 mph (112.65 km/h) | 66.05 mph (106.29 km/h) |
| 75 mph (120.7 km/h) | 70.76 mph (113.88 km/h) |
| 80 mph (128.75 km/h) | 75.48 mph (121.47 km/h) |
| 85 mph (136.79 km/h) | 80.2 mph (129.07 km/h) |
| 90 mph (144.84 km/h) | 84.92 mph (136.66 km/h) |
| 95 mph (152.89 km/h) | 89.63 mph (144.25 km/h) |
| 100 mph (160.93 km/h) | 94.35 mph (151.84 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2168 | 2519 | 2713 | 2833 | 2962 | 3054 | 3156 | 3276 | 3442 | 3608 | 3792 | 3940 | 4208 | 4503 | 4734 | 4881 | 4964 | 5269 | 5693 | 6616 |
Better Fuel Economy Factory Ratios Increased Power
