Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/75-16 | 235/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.83 (833.9) | 31.73 (805.9) | -1.1 (-28) -3.4% |
| Width inches (mm) | 11.22 (285) | 9.25 (235) | -1.97 (-50) -17.5% |
| Circum. inches (mm) | 103.14 (2619.77) | 99.68 (2531.81) | -3.46 (-87.96) -3.4% |
| Sidewall Height inches (mm) | 8.42 (213.75) | 7.86 (199.75) | -0.55 (-14) -6.5% |
| Revolutions per mile (km) | 614.31 (381.71) | 635.65 (394.97) | 21.34 (13.26) 3.5% |
235/85-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.33 mph (31.11 km/h) |
| 25 mph (40.23 km/h) | 24.16 mph (38.88 km/h) |
| 30 mph (48.28 km/h) | 28.99 mph (46.66 km/h) |
| 35 mph (56.33 km/h) | 33.82 mph (54.44 km/h) |
| 40 mph (64.37 km/h) | 38.66 mph (62.21 km/h) |
| 45 mph (72.42 km/h) | 43.49 mph (69.99 km/h) |
| 50 mph (80.47 km/h) | 48.32 mph (77.77 km/h) |
| 55 mph (88.51 km/h) | 53.15 mph (85.54 km/h) |
| 60 mph (96.56 km/h) | 57.99 mph (93.32 km/h) |
| 65 mph (104.61 km/h) | 62.82 mph (101.1 km/h) |
| 70 mph (112.65 km/h) | 67.65 mph (108.87 km/h) |
| 75 mph (120.7 km/h) | 72.48 mph (116.65 km/h) |
| 80 mph (128.75 km/h) | 77.31 mph (124.42 km/h) |
| 85 mph (136.79 km/h) | 82.15 mph (132.2 km/h) |
| 90 mph (144.84 km/h) | 86.98 mph (139.98 km/h) |
| 95 mph (152.89 km/h) | 91.81 mph (147.75 km/h) |
| 100 mph (160.93 km/h) | 96.64 mph (155.53 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 |
Better Fuel Economy Factory Ratios Increased Power
