Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/30-19 | 235/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.55 (623.6) | 25.33 (643.3) | 0.78 (19.7) 3.2% |
| Width inches (mm) | 9.25 (235) | 9.25 (235) | 0 (0) 0% |
| Circum. inches (mm) | 77.13 (1959.1) | 79.57 (2020.99) | 2.44 (61.89) 3.2% |
| Sidewall Height inches (mm) | 2.78 (70.5) | 4.16 (105.75) | 1.39 (35.25) 50% |
| Revolutions per mile (km) | 821.47 (510.44) | 796.32 (494.81) | -25.16 (-15.63) -3.1% |
235/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.63 mph (33.2 km/h) |
| 25 mph (40.23 km/h) | 25.79 mph (41.5 km/h) |
| 30 mph (48.28 km/h) | 30.95 mph (49.81 km/h) |
| 35 mph (56.33 km/h) | 36.11 mph (58.11 km/h) |
| 40 mph (64.37 km/h) | 41.26 mph (66.41 km/h) |
| 45 mph (72.42 km/h) | 46.42 mph (74.71 km/h) |
| 50 mph (80.47 km/h) | 51.58 mph (83.01 km/h) |
| 55 mph (88.51 km/h) | 56.74 mph (91.31 km/h) |
| 60 mph (96.56 km/h) | 61.9 mph (99.61 km/h) |
| 65 mph (104.61 km/h) | 67.05 mph (107.91 km/h) |
| 70 mph (112.65 km/h) | 72.21 mph (116.21 km/h) |
| 75 mph (120.7 km/h) | 77.37 mph (124.51 km/h) |
| 80 mph (128.75 km/h) | 82.53 mph (132.82 km/h) |
| 85 mph (136.79 km/h) | 87.69 mph (141.12 km/h) |
| 90 mph (144.84 km/h) | 92.84 mph (149.42 km/h) |
| 95 mph (152.89 km/h) | 98 mph (157.72 km/h) |
| 100 mph (160.93 km/h) | 103.16 mph (166.02 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2354 | 2535 | 2647 | 2768 | 2854 | 2949 | 3061 | 3216 | 3372 | 3544 | 3682 | 3932 | 4208 | 4424 | 4562 | 4639 | 4924 | 5321 | 6183 |
Better Fuel Economy Factory Ratios Increased Power
