Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-17 | 235/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.97 (634.3) | 24.4 (619.8) | -0.57 (-14.5) -2.3% |
| Width inches (mm) | 8.86 (225) | 9.25 (235) | 0.39 (10) 4.4% |
| Circum. inches (mm) | 78.45 (1992.71) | 76.66 (1947.16) | -1.79 (-45.55) -2.3% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 3.7 (94) | -0.29 (-7.25) -7.2% |
| Revolutions per mile (km) | 807.61 (501.83) | 826.51 (513.57) | 18.89 (11.74) 2.3% |
235/40-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.54 mph (31.45 km/h) |
| 25 mph (40.23 km/h) | 24.43 mph (39.31 km/h) |
| 30 mph (48.28 km/h) | 29.31 mph (47.18 km/h) |
| 35 mph (56.33 km/h) | 34.2 mph (55.04 km/h) |
| 40 mph (64.37 km/h) | 39.09 mph (62.9 km/h) |
| 45 mph (72.42 km/h) | 43.97 mph (70.77 km/h) |
| 50 mph (80.47 km/h) | 48.86 mph (78.63 km/h) |
| 55 mph (88.51 km/h) | 53.74 mph (86.49 km/h) |
| 60 mph (96.56 km/h) | 58.63 mph (94.35 km/h) |
| 65 mph (104.61 km/h) | 63.51 mph (102.22 km/h) |
| 70 mph (112.65 km/h) | 68.4 mph (110.08 km/h) |
| 75 mph (120.7 km/h) | 73.29 mph (117.94 km/h) |
| 80 mph (128.75 km/h) | 78.17 mph (125.8 km/h) |
| 85 mph (136.79 km/h) | 83.06 mph (133.67 km/h) |
| 90 mph (144.84 km/h) | 87.94 mph (141.53 km/h) |
| 95 mph (152.89 km/h) | 92.83 mph (149.39 km/h) |
| 100 mph (160.93 km/h) | 97.71 mph (157.26 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2103 | 2443 | 2631 | 2748 | 2873 | 2963 | 3061 | 3177 | 3338 | 3500 | 3679 | 3822 | 4081 | 4368 | 4591 | 4735 | 4815 | 5111 | 5522 | 6417 |
Better Fuel Economy Factory Ratios Increased Power
