Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/90-15 | 225/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.57 (624) | 24.97 (634.3) | 0.41 (10.3) 1.7% |
| Width inches (mm) | 5.31 (135) | 8.86 (225) | 3.54 (90) 66.7% |
| Circum. inches (mm) | 77.18 (1960.35) | 78.45 (1992.71) | 1.27 (32.36) 1.7% |
| Sidewall Height inches (mm) | 4.78 (121.5) | 3.99 (101.25) | -0.8 (-20.25) -16.7% |
| Revolutions per mile (km) | 820.95 (510.11) | 807.61 (501.83) | -13.33 (-8.28) -1.6% |
225/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.33 mph (32.72 km/h) |
| 25 mph (40.23 km/h) | 25.41 mph (40.9 km/h) |
| 30 mph (48.28 km/h) | 30.5 mph (49.08 km/h) |
| 35 mph (56.33 km/h) | 35.58 mph (57.26 km/h) |
| 40 mph (64.37 km/h) | 40.66 mph (65.44 km/h) |
| 45 mph (72.42 km/h) | 45.74 mph (73.62 km/h) |
| 50 mph (80.47 km/h) | 50.83 mph (81.8 km/h) |
| 55 mph (88.51 km/h) | 55.91 mph (89.98 km/h) |
| 60 mph (96.56 km/h) | 60.99 mph (98.15 km/h) |
| 65 mph (104.61 km/h) | 66.07 mph (106.33 km/h) |
| 70 mph (112.65 km/h) | 71.16 mph (114.51 km/h) |
| 75 mph (120.7 km/h) | 76.24 mph (122.69 km/h) |
| 80 mph (128.75 km/h) | 81.32 mph (130.87 km/h) |
| 85 mph (136.79 km/h) | 86.4 mph (139.05 km/h) |
| 90 mph (144.84 km/h) | 91.49 mph (147.23 km/h) |
| 95 mph (152.89 km/h) | 96.57 mph (155.41 km/h) |
| 100 mph (160.93 km/h) | 101.65 mph (163.59 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2055 | 2388 | 2571 | 2685 | 2807 | 2895 | 2991 | 3105 | 3262 | 3420 | 3594 | 3734 | 3988 | 4268 | 4487 | 4626 | 4705 | 4994 | 5396 | 6271 |
Better Fuel Economy Factory Ratios Increased Power
