Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 250/70-15 | 27/8.25-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.78 (731) | 27.07 (687.6) | -1.71 (-43.4) -5.9% |
| Width inches (mm) | 9.84 (250) | 8.27 (210) | -1.57 (-40) -16% |
| Circum. inches (mm) | 90.41 (2296.5) | 85.05 (2160.16) | -5.37 (-136.35) -5.9% |
| Sidewall Height inches (mm) | 6.89 (175) | 6.04 (153.3) | -0.85 (-21.7) -12.4% |
| Revolutions per mile (km) | 700.78 (435.44) | 745.01 (462.93) | 44.23 (27.48) 6.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.81 mph (30.28 km/h) |
| 25 mph (40.23 km/h) | 23.52 mph (37.84 km/h) |
| 30 mph (48.28 km/h) | 28.22 mph (45.41 km/h) |
| 35 mph (56.33 km/h) | 32.92 mph (52.98 km/h) |
| 40 mph (64.37 km/h) | 37.63 mph (60.55 km/h) |
| 45 mph (72.42 km/h) | 42.33 mph (68.12 km/h) |
| 50 mph (80.47 km/h) | 47.03 mph (75.69 km/h) |
| 55 mph (88.51 km/h) | 51.73 mph (83.26 km/h) |
| 60 mph (96.56 km/h) | 56.44 mph (90.83 km/h) |
| 65 mph (104.61 km/h) | 61.14 mph (98.4 km/h) |
| 70 mph (112.65 km/h) | 65.84 mph (105.97 km/h) |
| 75 mph (120.7 km/h) | 70.55 mph (113.53 km/h) |
| 80 mph (128.75 km/h) | 75.25 mph (121.1 km/h) |
| 85 mph (136.79 km/h) | 79.95 mph (128.67 km/h) |
| 90 mph (144.84 km/h) | 84.66 mph (136.24 km/h) |
| 95 mph (152.89 km/h) | 89.36 mph (143.81 km/h) |
| 100 mph (160.93 km/h) | 94.06 mph (151.38 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1896 | 2202 | 2372 | 2477 | 2590 | 2670 | 2759 | 2864 | 3009 | 3154 | 3316 | 3445 | 3679 | 3937 | 4139 | 4268 | 4340 | 4607 | 4978 | 5785 |
Better Fuel Economy Factory Ratios Increased Power
