Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/85-18 | 295/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.03 (661.2) | 27.78 (705.5) | 1.74 (44.3) 6.7% |
| Width inches (mm) | 4.72 (120) | 11.61 (295) | 6.89 (175) 145.8% |
| Circum. inches (mm) | 81.78 (2077.22) | 87.26 (2216.39) | 5.48 (139.17) 6.7% |
| Sidewall Height inches (mm) | 4.02 (102) | 6.39 (162.25) | 2.37 (60.25) 59.1% |
| Revolutions per mile (km) | 774.76 (481.41) | 726.11 (451.18) | -48.65 (-30.23) -6.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.34 mph (34.34 km/h) |
| 25 mph (40.23 km/h) | 26.67 mph (42.93 km/h) |
| 30 mph (48.28 km/h) | 32.01 mph (51.52 km/h) |
| 35 mph (56.33 km/h) | 37.34 mph (60.1 km/h) |
| 40 mph (64.37 km/h) | 42.68 mph (68.69 km/h) |
| 45 mph (72.42 km/h) | 48.01 mph (77.27 km/h) |
| 50 mph (80.47 km/h) | 53.35 mph (85.86 km/h) |
| 55 mph (88.51 km/h) | 58.68 mph (94.44 km/h) |
| 60 mph (96.56 km/h) | 64.02 mph (103.03 km/h) |
| 65 mph (104.61 km/h) | 69.35 mph (111.62 km/h) |
| 70 mph (112.65 km/h) | 74.69 mph (120.2 km/h) |
| 75 mph (120.7 km/h) | 80.02 mph (128.79 km/h) |
| 80 mph (128.75 km/h) | 85.36 mph (137.37 km/h) |
| 85 mph (136.79 km/h) | 90.69 mph (145.96 km/h) |
| 90 mph (144.84 km/h) | 96.03 mph (154.55 km/h) |
| 95 mph (152.89 km/h) | 101.36 mph (163.13 km/h) |
| 100 mph (160.93 km/h) | 106.7 mph (171.72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1848 | 2147 | 2312 | 2414 | 2524 | 2603 | 2689 | 2791 | 2933 | 3074 | 3232 | 3358 | 3586 | 3837 | 4034 | 4160 | 4230 | 4490 | 4851 | 5638 |
Better Fuel Economy Factory Ratios Increased Power
