Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 32/10-17 | 270/85-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32 (812.8) | 35.07 (890.8) | 3.07 (78) 9.6% |
| Width inches (mm) | 10 (254) | 10.63 (270) | 0.63 (16) 6.3% |
| Circum. inches (mm) | 100.53 (2553.49) | 110.18 (2798.53) | 9.65 (245.04) 9.6% |
| Sidewall Height inches (mm) | 7.5 (190.5) | 9.04 (229.5) | 1.54 (39) 20.5% |
| Revolutions per mile (km) | 630.25 (391.62) | 575.07 (357.33) | -55.19 (-34.29) -8.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.92 mph (35.28 km/h) |
| 25 mph (40.23 km/h) | 27.4 mph (44.09 km/h) |
| 30 mph (48.28 km/h) | 32.88 mph (52.91 km/h) |
| 35 mph (56.33 km/h) | 38.36 mph (61.73 km/h) |
| 40 mph (64.37 km/h) | 43.84 mph (70.55 km/h) |
| 45 mph (72.42 km/h) | 49.32 mph (79.37 km/h) |
| 50 mph (80.47 km/h) | 54.8 mph (88.19 km/h) |
| 55 mph (88.51 km/h) | 60.28 mph (97.01 km/h) |
| 60 mph (96.56 km/h) | 65.76 mph (105.83 km/h) |
| 65 mph (104.61 km/h) | 71.24 mph (114.65 km/h) |
| 70 mph (112.65 km/h) | 76.72 mph (123.47 km/h) |
| 75 mph (120.7 km/h) | 82.2 mph (132.28 km/h) |
| 80 mph (128.75 km/h) | 87.68 mph (141.1 km/h) |
| 85 mph (136.79 km/h) | 93.16 mph (149.92 km/h) |
| 90 mph (144.84 km/h) | 98.64 mph (158.74 km/h) |
| 95 mph (152.89 km/h) | 104.12 mph (167.56 km/h) |
| 100 mph (160.93 km/h) | 109.6 mph (176.38 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1463 | 1700 | 1831 | 1912 | 1999 | 2061 | 2130 | 2211 | 2323 | 2435 | 2559 | 2659 | 2840 | 3039 | 3195 | 3294 | 3350 | 3556 | 3842 | 4465 |
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