Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/90-15 | 175/90-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.86 (606) | 27.4 (696) | 3.54 (90) 14.9% |
| Width inches (mm) | 4.92 (125) | 6.89 (175) | 1.97 (50) 40% |
| Circum. inches (mm) | 74.95 (1903.81) | 86.08 (2186.55) | 11.13 (282.74) 14.9% |
| Sidewall Height inches (mm) | 4.43 (112.5) | 6.2 (157.5) | 1.77 (45) 40% |
| Revolutions per mile (km) | 845.33 (525.26) | 736.02 (457.34) | -109.31 (-67.92) -12.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.97 mph (36.97 km/h) |
| 25 mph (40.23 km/h) | 28.71 mph (46.21 km/h) |
| 30 mph (48.28 km/h) | 34.46 mph (55.45 km/h) |
| 35 mph (56.33 km/h) | 40.2 mph (64.69 km/h) |
| 40 mph (64.37 km/h) | 45.94 mph (73.93 km/h) |
| 45 mph (72.42 km/h) | 51.68 mph (83.18 km/h) |
| 50 mph (80.47 km/h) | 57.43 mph (92.42 km/h) |
| 55 mph (88.51 km/h) | 63.17 mph (101.66 km/h) |
| 60 mph (96.56 km/h) | 68.91 mph (110.9 km/h) |
| 65 mph (104.61 km/h) | 74.65 mph (120.14 km/h) |
| 70 mph (112.65 km/h) | 80.4 mph (129.39 km/h) |
| 75 mph (120.7 km/h) | 86.14 mph (138.63 km/h) |
| 80 mph (128.75 km/h) | 91.88 mph (147.87 km/h) |
| 85 mph (136.79 km/h) | 97.62 mph (157.11 km/h) |
| 90 mph (144.84 km/h) | 103.37 mph (166.35 km/h) |
| 95 mph (152.89 km/h) | 109.11 mph (175.59 km/h) |
| 100 mph (160.93 km/h) | 114.85 mph (184.84 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1873 | 2176 | 2343 | 2447 | 2558 | 2638 | 2726 | 2829 | 2973 | 3116 | 3276 | 3403 | 3634 | 3890 | 4089 | 4216 | 4288 | 4551 | 4918 | 5715 |
Better Fuel Economy Factory Ratios Increased Power
