Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/35-18 | 225/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.48 (621.7) | 24.97 (634.3) | 0.5 (12.6) 2% |
| Width inches (mm) | 9.25 (235) | 8.86 (225) | -0.39 (-10) -4.3% |
| Circum. inches (mm) | 76.89 (1953.13) | 78.45 (1992.71) | 1.56 (39.58) 2% |
| Sidewall Height inches (mm) | 3.24 (82.25) | 3.99 (101.25) | 0.75 (19) 23.1% |
| Revolutions per mile (km) | 823.98 (512) | 807.61 (501.83) | -16.37 (-10.17) -2% |
225/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.41 mph (32.84 km/h) |
| 25 mph (40.23 km/h) | 25.51 mph (41.05 km/h) |
| 30 mph (48.28 km/h) | 30.61 mph (49.26 km/h) |
| 35 mph (56.33 km/h) | 35.71 mph (57.47 km/h) |
| 40 mph (64.37 km/h) | 40.81 mph (65.68 km/h) |
| 45 mph (72.42 km/h) | 45.91 mph (73.89 km/h) |
| 50 mph (80.47 km/h) | 51.01 mph (82.1 km/h) |
| 55 mph (88.51 km/h) | 56.11 mph (90.31 km/h) |
| 60 mph (96.56 km/h) | 61.22 mph (98.52 km/h) |
| 65 mph (104.61 km/h) | 66.32 mph (106.73 km/h) |
| 70 mph (112.65 km/h) | 71.42 mph (114.94 km/h) |
| 75 mph (120.7 km/h) | 76.52 mph (123.15 km/h) |
| 80 mph (128.75 km/h) | 81.62 mph (131.36 km/h) |
| 85 mph (136.79 km/h) | 86.72 mph (139.57 km/h) |
| 90 mph (144.84 km/h) | 91.82 mph (147.78 km/h) |
| 95 mph (152.89 km/h) | 96.93 mph (155.99 km/h) |
| 100 mph (160.93 km/h) | 102.03 mph (164.2 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
