Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 280/85-16 | 255/83-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.74 (882.4) | 32.67 (829.7) | -2.07 (-52.7) -6% |
| Width inches (mm) | 11.02 (280) | 10.04 (255) | -0.98 (-25) -8.9% |
| Circum. inches (mm) | 109.14 (2772.14) | 102.62 (2606.58) | -6.52 (-165.56) -6% |
| Sidewall Height inches (mm) | 9.37 (238) | 8.33 (211.65) | -1.04 (-26.35) -11.1% |
| Revolutions per mile (km) | 580.54 (360.73) | 617.42 (383.64) | 36.87 (22.91) 6.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.81 mph (30.26 km/h) |
| 25 mph (40.23 km/h) | 23.51 mph (37.83 km/h) |
| 30 mph (48.28 km/h) | 28.21 mph (45.4 km/h) |
| 35 mph (56.33 km/h) | 32.91 mph (52.96 km/h) |
| 40 mph (64.37 km/h) | 37.61 mph (60.53 km/h) |
| 45 mph (72.42 km/h) | 42.31 mph (68.1 km/h) |
| 50 mph (80.47 km/h) | 47.01 mph (75.66 km/h) |
| 55 mph (88.51 km/h) | 51.72 mph (83.23 km/h) |
| 60 mph (96.56 km/h) | 56.42 mph (90.79 km/h) |
| 65 mph (104.61 km/h) | 61.12 mph (98.36 km/h) |
| 70 mph (112.65 km/h) | 65.82 mph (105.93 km/h) |
| 75 mph (120.7 km/h) | 70.52 mph (113.49 km/h) |
| 80 mph (128.75 km/h) | 75.22 mph (121.06 km/h) |
| 85 mph (136.79 km/h) | 79.92 mph (128.62 km/h) |
| 90 mph (144.84 km/h) | 84.62 mph (136.19 km/h) |
| 95 mph (152.89 km/h) | 89.33 mph (143.76 km/h) |
| 100 mph (160.93 km/h) | 94.03 mph (151.32 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1571 | 1825 | 1966 | 2053 | 2146 | 2213 | 2287 | 2374 | 2494 | 2614 | 2748 | 2855 | 3049 | 3263 | 3430 | 3537 | 3597 | 3818 | 4125 | 4794 |
Better Fuel Economy Factory Ratios Increased Power
