Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/60-12 | 150/90-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 17.67 (448.8) | 22.63 (574.8) | 4.96 (126) 28.1% |
| Width inches (mm) | 4.72 (120) | 5.91 (150) | 1.18 (30) 25% |
| Circum. inches (mm) | 55.51 (1409.95) | 71.09 (1805.79) | 15.58 (395.84) 28.1% |
| Sidewall Height inches (mm) | 2.83 (72) | 5.31 (135) | 2.48 (63) 87.5% |
| Revolutions per mile (km) | 1141.42 (709.25) | 891.21 (553.77) | -250.21 (-155.47) -21.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.61 mph (41.22 km/h) |
| 25 mph (40.23 km/h) | 32.02 mph (51.53 km/h) |
| 30 mph (48.28 km/h) | 38.42 mph (61.84 km/h) |
| 35 mph (56.33 km/h) | 44.83 mph (72.14 km/h) |
| 40 mph (64.37 km/h) | 51.23 mph (82.45 km/h) |
| 45 mph (72.42 km/h) | 57.63 mph (92.75 km/h) |
| 50 mph (80.47 km/h) | 64.04 mph (103.06 km/h) |
| 55 mph (88.51 km/h) | 70.44 mph (113.36 km/h) |
| 60 mph (96.56 km/h) | 76.84 mph (123.67 km/h) |
| 65 mph (104.61 km/h) | 83.25 mph (133.98 km/h) |
| 70 mph (112.65 km/h) | 89.65 mph (144.28 km/h) |
| 75 mph (120.7 km/h) | 96.06 mph (154.59 km/h) |
| 80 mph (128.75 km/h) | 102.46 mph (164.89 km/h) |
| 85 mph (136.79 km/h) | 108.86 mph (175.2 km/h) |
| 90 mph (144.84 km/h) | 115.27 mph (185.51 km/h) |
| 95 mph (152.89 km/h) | 121.67 mph (195.81 km/h) |
| 100 mph (160.93 km/h) | 128.07 mph (206.12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2268 | 2635 | 2837 | 2963 | 3098 | 3194 | 3301 | 3426 | 3600 | 3774 | 3967 | 4121 | 4401 | 4710 | 4951 | 5105 | 5192 | 5511 | 5955 | 6920 |
Better Fuel Economy Factory Ratios Increased Power
