Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-17 | 225/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.54 (648.8) | 26.74 (679.3) | 1.2 (30.5) 4.7% |
| Width inches (mm) | 6.1 (155) | 8.86 (225) | 2.76 (70) 45.2% |
| Circum. inches (mm) | 80.25 (2038.27) | 84.02 (2134.08) | 3.77 (95.82) 4.7% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 4.87 (123.75) | 0.6 (15.25) 14.1% |
| Revolutions per mile (km) | 789.57 (490.61) | 754.11 (468.58) | -35.45 (-22.03) -4.5% |
225/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.94 mph (33.7 km/h) |
| 25 mph (40.23 km/h) | 26.18 mph (42.13 km/h) |
| 30 mph (48.28 km/h) | 31.41 mph (50.55 km/h) |
| 35 mph (56.33 km/h) | 36.65 mph (58.98 km/h) |
| 40 mph (64.37 km/h) | 41.88 mph (67.4 km/h) |
| 45 mph (72.42 km/h) | 47.12 mph (75.83 km/h) |
| 50 mph (80.47 km/h) | 52.35 mph (84.25 km/h) |
| 55 mph (88.51 km/h) | 57.59 mph (92.68 km/h) |
| 60 mph (96.56 km/h) | 62.82 mph (101.1 km/h) |
| 65 mph (104.61 km/h) | 68.06 mph (109.53 km/h) |
| 70 mph (112.65 km/h) | 73.29 mph (117.95 km/h) |
| 75 mph (120.7 km/h) | 78.53 mph (126.38 km/h) |
| 80 mph (128.75 km/h) | 83.76 mph (134.8 km/h) |
| 85 mph (136.79 km/h) | 89 mph (143.23 km/h) |
| 90 mph (144.84 km/h) | 94.23 mph (151.65 km/h) |
| 95 mph (152.89 km/h) | 99.47 mph (160.08 km/h) |
| 100 mph (160.93 km/h) | 104.7 mph (168.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1919 | 2229 | 2401 | 2507 | 2621 | 2703 | 2793 | 2899 | 3046 | 3193 | 3356 | 3487 | 3724 | 3985 | 4189 | 4320 | 4393 | 4663 | 5039 | 5855 |
Better Fuel Economy Factory Ratios Increased Power
