Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 280/85-16 | 33/8.25-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.74 (882.4) | 33.03 (839) | -1.71 (-43.4) -4.9% |
| Width inches (mm) | 11.02 (280) | 8.27 (210) | -2.76 (-70) -25% |
| Circum. inches (mm) | 109.14 (2772.14) | 103.77 (2635.8) | -5.37 (-136.35) -4.9% |
| Sidewall Height inches (mm) | 9.37 (238) | 8.52 (216.3) | -0.85 (-21.7) -9.1% |
| Revolutions per mile (km) | 580.54 (360.73) | 610.57 (379.39) | 30.03 (18.66) 5.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.02 mph (30.6 km/h) |
| 25 mph (40.23 km/h) | 23.77 mph (38.25 km/h) |
| 30 mph (48.28 km/h) | 28.52 mph (45.91 km/h) |
| 35 mph (56.33 km/h) | 33.28 mph (53.56 km/h) |
| 40 mph (64.37 km/h) | 38.03 mph (61.21 km/h) |
| 45 mph (72.42 km/h) | 42.79 mph (68.86 km/h) |
| 50 mph (80.47 km/h) | 47.54 mph (76.51 km/h) |
| 55 mph (88.51 km/h) | 52.29 mph (84.16 km/h) |
| 60 mph (96.56 km/h) | 57.05 mph (91.81 km/h) |
| 65 mph (104.61 km/h) | 61.8 mph (99.46 km/h) |
| 70 mph (112.65 km/h) | 66.56 mph (107.11 km/h) |
| 75 mph (120.7 km/h) | 71.31 mph (114.76 km/h) |
| 80 mph (128.75 km/h) | 76.07 mph (122.42 km/h) |
| 85 mph (136.79 km/h) | 80.82 mph (130.07 km/h) |
| 90 mph (144.84 km/h) | 85.57 mph (137.72 km/h) |
| 95 mph (152.89 km/h) | 90.33 mph (145.37 km/h) |
| 100 mph (160.93 km/h) | 95.08 mph (153.02 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1554 | 1805 | 1944 | 2030 | 2122 | 2189 | 2261 | 2347 | 2466 | 2585 | 2717 | 2823 | 3015 | 3227 | 3392 | 3498 | 3557 | 3775 | 4080 | 4741 |
Better Fuel Economy Factory Ratios Increased Power
