Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/55-17 | 235/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.18 (690.3) | 25.33 (643.3) | -1.85 (-47) -6.8% |
| Width inches (mm) | 9.25 (235) | 9.25 (235) | 0 (0) 0% |
| Circum. inches (mm) | 85.38 (2168.64) | 79.57 (2020.99) | -5.81 (-147.65) -6.8% |
| Sidewall Height inches (mm) | 5.09 (129.25) | 4.16 (105.75) | -0.93 (-23.5) -18.2% |
| Revolutions per mile (km) | 742.1 (461.12) | 796.32 (494.81) | 54.22 (33.69) 7.3% |
235/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.64 mph (30 km/h) |
| 25 mph (40.23 km/h) | 23.3 mph (37.49 km/h) |
| 30 mph (48.28 km/h) | 27.96 mph (44.99 km/h) |
| 35 mph (56.33 km/h) | 32.62 mph (52.49 km/h) |
| 40 mph (64.37 km/h) | 37.28 mph (59.99 km/h) |
| 45 mph (72.42 km/h) | 41.94 mph (67.49 km/h) |
| 50 mph (80.47 km/h) | 46.6 mph (74.99 km/h) |
| 55 mph (88.51 km/h) | 51.26 mph (82.49 km/h) |
| 60 mph (96.56 km/h) | 55.91 mph (89.99 km/h) |
| 65 mph (104.61 km/h) | 60.57 mph (97.49 km/h) |
| 70 mph (112.65 km/h) | 65.23 mph (104.98 km/h) |
| 75 mph (120.7 km/h) | 69.89 mph (112.48 km/h) |
| 80 mph (128.75 km/h) | 74.55 mph (119.98 km/h) |
| 85 mph (136.79 km/h) | 79.21 mph (127.48 km/h) |
| 90 mph (144.84 km/h) | 83.87 mph (134.98 km/h) |
| 95 mph (152.89 km/h) | 88.53 mph (142.48 km/h) |
| 100 mph (160.93 km/h) | 93.19 mph (149.98 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 |
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