Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/65-20 | 35/11.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.59 (878.5) | 34.94 (887.6) | 0.36 (9.1) 1% |
| Width inches (mm) | 11.22 (285) | 11.5 (292) | 0.28 (7) 2.5% |
| Circum. inches (mm) | 108.66 (2759.89) | 109.78 (2788.48) | 1.13 (28.59) 1% |
| Sidewall Height inches (mm) | 7.29 (185.25) | 7.47 (189.8) | 0.18 (4.55) 2.5% |
| Revolutions per mile (km) | 583.12 (362.33) | 577.14 (358.62) | -5.98 (-3.71) -1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.21 mph (32.52 km/h) |
| 25 mph (40.23 km/h) | 25.26 mph (40.65 km/h) |
| 30 mph (48.28 km/h) | 30.31 mph (48.78 km/h) |
| 35 mph (56.33 km/h) | 35.36 mph (56.91 km/h) |
| 40 mph (64.37 km/h) | 40.41 mph (65.04 km/h) |
| 45 mph (72.42 km/h) | 45.47 mph (73.17 km/h) |
| 50 mph (80.47 km/h) | 50.52 mph (81.3 km/h) |
| 55 mph (88.51 km/h) | 55.57 mph (89.43 km/h) |
| 60 mph (96.56 km/h) | 60.62 mph (97.56 km/h) |
| 65 mph (104.61 km/h) | 65.67 mph (105.69 km/h) |
| 70 mph (112.65 km/h) | 70.73 mph (113.82 km/h) |
| 75 mph (120.7 km/h) | 75.78 mph (121.95 km/h) |
| 80 mph (128.75 km/h) | 80.83 mph (130.08 km/h) |
| 85 mph (136.79 km/h) | 85.88 mph (138.21 km/h) |
| 90 mph (144.84 km/h) | 90.93 mph (146.34 km/h) |
| 95 mph (152.89 km/h) | 95.98 mph (154.47 km/h) |
| 100 mph (160.93 km/h) | 101.04 mph (162.6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1469 | 1706 | 1837 | 1919 | 2006 | 2069 | 2137 | 2219 | 2331 | 2444 | 2569 | 2669 | 2850 | 3050 | 3206 | 3306 | 3362 | 3569 | 3856 | 4481 |
Better Fuel Economy Factory Ratios Increased Power
