Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/85-16 | 235/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.07 (839.9) | 31.73 (805.9) | -1.34 (-34) -4% |
| Width inches (mm) | 10.04 (255) | 9.25 (235) | -0.79 (-20) -7.8% |
| Circum. inches (mm) | 103.88 (2638.62) | 99.68 (2531.81) | -4.21 (-106.81) -4% |
| Sidewall Height inches (mm) | 8.53 (216.75) | 7.86 (199.75) | -0.67 (-17) -7.8% |
| Revolutions per mile (km) | 609.92 (378.98) | 635.65 (394.97) | 25.73 (15.99) 4.2% |
235/85-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.19 mph (30.88 km/h) |
| 25 mph (40.23 km/h) | 23.99 mph (38.6 km/h) |
| 30 mph (48.28 km/h) | 28.79 mph (46.33 km/h) |
| 35 mph (56.33 km/h) | 33.58 mph (54.05 km/h) |
| 40 mph (64.37 km/h) | 38.38 mph (61.77 km/h) |
| 45 mph (72.42 km/h) | 43.18 mph (69.49 km/h) |
| 50 mph (80.47 km/h) | 47.98 mph (77.21 km/h) |
| 55 mph (88.51 km/h) | 52.77 mph (84.93 km/h) |
| 60 mph (96.56 km/h) | 57.57 mph (92.65 km/h) |
| 65 mph (104.61 km/h) | 62.37 mph (100.37 km/h) |
| 70 mph (112.65 km/h) | 67.17 mph (108.09 km/h) |
| 75 mph (120.7 km/h) | 71.96 mph (115.81 km/h) |
| 80 mph (128.75 km/h) | 76.76 mph (123.54 km/h) |
| 85 mph (136.79 km/h) | 81.56 mph (131.26 km/h) |
| 90 mph (144.84 km/h) | 86.36 mph (138.98 km/h) |
| 95 mph (152.89 km/h) | 91.15 mph (146.7 km/h) |
| 100 mph (160.93 km/h) | 95.95 mph (154.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1618 | 1879 | 2024 | 2113 | 2210 | 2278 | 2354 | 2444 | 2568 | 2691 | 2829 | 2939 | 3139 | 3359 | 3531 | 3641 | 3703 | 3930 | 4247 | 4935 |
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