Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/80-16 | 235/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.06 (814.4) | 31.73 (805.9) | -0.33 (-8.5) -1% |
| Width inches (mm) | 10.04 (255) | 9.25 (235) | -0.79 (-20) -7.8% |
| Circum. inches (mm) | 100.73 (2558.51) | 99.68 (2531.81) | -1.05 (-26.7) -1% |
| Sidewall Height inches (mm) | 8.03 (204) | 7.86 (199.75) | -0.17 (-4.25) -2.1% |
| Revolutions per mile (km) | 629.02 (390.85) | 635.65 (394.97) | 6.63 (4.12) 1.1% |
235/85-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.79 mph (31.85 km/h) |
| 25 mph (40.23 km/h) | 24.74 mph (39.81 km/h) |
| 30 mph (48.28 km/h) | 29.69 mph (47.78 km/h) |
| 35 mph (56.33 km/h) | 34.63 mph (55.74 km/h) |
| 40 mph (64.37 km/h) | 39.58 mph (63.7 km/h) |
| 45 mph (72.42 km/h) | 44.53 mph (71.66 km/h) |
| 50 mph (80.47 km/h) | 49.48 mph (79.63 km/h) |
| 55 mph (88.51 km/h) | 54.43 mph (87.59 km/h) |
| 60 mph (96.56 km/h) | 59.37 mph (95.55 km/h) |
| 65 mph (104.61 km/h) | 64.32 mph (103.52 km/h) |
| 70 mph (112.65 km/h) | 69.27 mph (111.48 km/h) |
| 75 mph (120.7 km/h) | 74.22 mph (119.44 km/h) |
| 80 mph (128.75 km/h) | 79.17 mph (127.4 km/h) |
| 85 mph (136.79 km/h) | 84.11 mph (135.37 km/h) |
| 90 mph (144.84 km/h) | 89.06 mph (143.33 km/h) |
| 95 mph (152.89 km/h) | 94.01 mph (151.29 km/h) |
| 100 mph (160.93 km/h) | 98.96 mph (159.26 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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