Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/45-17 | 235/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.04 (661.3) | 25.33 (643.3) | -0.71 (-18) -2.7% |
| Width inches (mm) | 10.04 (255) | 9.25 (235) | -0.79 (-20) -7.8% |
| Circum. inches (mm) | 81.79 (2077.54) | 79.57 (2020.99) | -2.23 (-56.55) -2.7% |
| Sidewall Height inches (mm) | 4.52 (114.75) | 4.16 (105.75) | -0.35 (-9) -7.8% |
| Revolutions per mile (km) | 774.64 (481.34) | 796.32 (494.81) | 21.68 (13.47) 2.8% |
235/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.46 mph (31.31 km/h) |
| 25 mph (40.23 km/h) | 24.32 mph (39.14 km/h) |
| 30 mph (48.28 km/h) | 29.18 mph (46.97 km/h) |
| 35 mph (56.33 km/h) | 34.05 mph (54.79 km/h) |
| 40 mph (64.37 km/h) | 38.91 mph (62.62 km/h) |
| 45 mph (72.42 km/h) | 43.78 mph (70.45 km/h) |
| 50 mph (80.47 km/h) | 48.64 mph (78.28 km/h) |
| 55 mph (88.51 km/h) | 53.5 mph (86.1 km/h) |
| 60 mph (96.56 km/h) | 58.37 mph (93.93 km/h) |
| 65 mph (104.61 km/h) | 63.23 mph (101.76 km/h) |
| 70 mph (112.65 km/h) | 68.09 mph (109.59 km/h) |
| 75 mph (120.7 km/h) | 72.96 mph (117.42 km/h) |
| 80 mph (128.75 km/h) | 77.82 mph (125.24 km/h) |
| 85 mph (136.79 km/h) | 82.69 mph (133.07 km/h) |
| 90 mph (144.84 km/h) | 87.55 mph (140.9 km/h) |
| 95 mph (152.89 km/h) | 92.41 mph (148.73 km/h) |
| 100 mph (160.93 km/h) | 97.28 mph (156.55 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
