Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/90-15 | 175/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.86 (606) | 24.65 (626) | 0.79 (20) 3.3% |
| Width inches (mm) | 4.92 (125) | 6.89 (175) | 1.97 (50) 40% |
| Circum. inches (mm) | 74.95 (1903.81) | 77.43 (1966.64) | 2.47 (62.83) 3.3% |
| Sidewall Height inches (mm) | 4.43 (112.5) | 4.82 (122.5) | 0.39 (10) 8.9% |
| Revolutions per mile (km) | 845.33 (525.26) | 818.32 (508.48) | -27.01 (-16.78) -3.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.66 mph (33.25 km/h) |
| 25 mph (40.23 km/h) | 25.83 mph (41.56 km/h) |
| 30 mph (48.28 km/h) | 30.99 mph (49.87 km/h) |
| 35 mph (56.33 km/h) | 36.16 mph (58.19 km/h) |
| 40 mph (64.37 km/h) | 41.32 mph (66.5 km/h) |
| 45 mph (72.42 km/h) | 46.49 mph (74.81 km/h) |
| 50 mph (80.47 km/h) | 51.65 mph (83.12 km/h) |
| 55 mph (88.51 km/h) | 56.82 mph (91.44 km/h) |
| 60 mph (96.56 km/h) | 61.98 mph (99.75 km/h) |
| 65 mph (104.61 km/h) | 67.15 mph (108.06 km/h) |
| 70 mph (112.65 km/h) | 72.31 mph (116.37 km/h) |
| 75 mph (120.7 km/h) | 77.48 mph (124.68 km/h) |
| 80 mph (128.75 km/h) | 82.64 mph (133 km/h) |
| 85 mph (136.79 km/h) | 87.81 mph (141.31 km/h) |
| 90 mph (144.84 km/h) | 92.97 mph (149.62 km/h) |
| 95 mph (152.89 km/h) | 98.14 mph (157.93 km/h) |
| 100 mph (160.93 km/h) | 103.3 mph (166.25 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2082 | 2419 | 2605 | 2721 | 2845 | 2933 | 3031 | 3146 | 3305 | 3465 | 3642 | 3784 | 4041 | 4324 | 4546 | 4688 | 4768 | 5060 | 5468 | 6354 |
Better Fuel Economy Factory Ratios Increased Power
