Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/85-16 | 235/85-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.73 (805.9) | 32.73 (831.3) | 1 (25.4) 3.2% |
| Width inches (mm) | 9.25 (235) | 9.25 (235) | 0 (0) 0% |
| Circum. inches (mm) | 99.68 (2531.81) | 102.82 (2611.61) | 3.14 (79.8) 3.2% |
| Sidewall Height inches (mm) | 7.86 (199.75) | 7.86 (199.75) | 0 (0) 0% |
| Revolutions per mile (km) | 635.65 (394.97) | 616.23 (382.91) | -19.42 (-12.07) -3.1% |
235/85-17 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 (49.8 km/h) |
| 35 mph (56.33 km/h) | 36.1 mph (58.1 km/h) |
| 40 mph (64.37 km/h) | 41.26 mph (66.4 km/h) |
| 45 mph (72.42 km/h) | 46.42 mph (74.7 km/h) |
| 50 mph (80.47 km/h) | 51.58 mph (83 km/h) |
| 55 mph (88.51 km/h) | 56.73 mph (91.3 km/h) |
| 60 mph (96.56 km/h) | 61.89 mph (99.6 km/h) |
| 65 mph (104.61 km/h) | 67.05 mph (107.9 km/h) |
| 70 mph (112.65 km/h) | 72.21 mph (116.2 km/h) |
| 75 mph (120.7 km/h) | 77.36 mph (124.51 km/h) |
| 80 mph (128.75 km/h) | 82.52 mph (132.81 km/h) |
| 85 mph (136.79 km/h) | 87.68 mph (141.11 km/h) |
| 90 mph (144.84 km/h) | 92.84 mph (149.41 km/h) |
| 95 mph (152.89 km/h) | 97.99 mph (157.71 km/h) |
| 100 mph (160.93 km/h) | 103.15 mph (166.01 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1568 | 1822 | 1962 | 2049 | 2142 | 2209 | 2282 | 2369 | 2489 | 2609 | 2743 | 2849 | 3043 | 3256 | 3423 | 3530 | 3590 | 3810 | 4117 | 4785 |
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