Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/75-17 | 235/85-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.7 (754.3) | 32.73 (831.3) | 3.03 (77) 10.2% |
| Width inches (mm) | 8.46 (215) | 9.25 (235) | 0.79 (20) 9.3% |
| Circum. inches (mm) | 93.3 (2369.7) | 102.82 (2611.61) | 9.52 (241.9) 10.2% |
| Sidewall Height inches (mm) | 6.35 (161.25) | 7.86 (199.75) | 1.52 (38.5) 23.9% |
| Revolutions per mile (km) | 679.13 (421.99) | 616.23 (382.91) | -62.91 (-39.09) -9.3% |
235/85-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.04 mph (35.47 km/h) |
| 25 mph (40.23 km/h) | 27.55 mph (44.34 km/h) |
| 30 mph (48.28 km/h) | 33.06 mph (53.21 km/h) |
| 35 mph (56.33 km/h) | 38.57 mph (62.08 km/h) |
| 40 mph (64.37 km/h) | 44.08 mph (70.95 km/h) |
| 45 mph (72.42 km/h) | 49.59 mph (79.81 km/h) |
| 50 mph (80.47 km/h) | 55.1 mph (88.68 km/h) |
| 55 mph (88.51 km/h) | 60.61 mph (97.55 km/h) |
| 60 mph (96.56 km/h) | 66.12 mph (106.42 km/h) |
| 65 mph (104.61 km/h) | 71.64 mph (115.29 km/h) |
| 70 mph (112.65 km/h) | 77.15 mph (124.15 km/h) |
| 75 mph (120.7 km/h) | 82.66 mph (133.02 km/h) |
| 80 mph (128.75 km/h) | 88.17 mph (141.89 km/h) |
| 85 mph (136.79 km/h) | 93.68 mph (150.76 km/h) |
| 90 mph (144.84 km/h) | 99.19 mph (159.63 km/h) |
| 95 mph (152.89 km/h) | 104.7 mph (168.49 km/h) |
| 100 mph (160.93 km/h) | 110.21 mph (177.36 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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