Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/25-20 | 225/20-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.41 (645.5) | 23.54 (598) | -1.87 (-47.5) -7.4% |
| Width inches (mm) | 10.83 (275) | 8.86 (225) | -1.97 (-50) -18.2% |
| Circum. inches (mm) | 79.84 (2027.9) | 73.96 (1878.67) | -5.88 (-149.23) -7.4% |
| Sidewall Height inches (mm) | 2.71 (68.75) | 1.77 (45) | -0.94 (-23.75) -34.5% |
| Revolutions per mile (km) | 793.6 (493.12) | 856.64 (532.29) | 63.04 (39.17) 7.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.53 mph (29.82 km/h) |
| 25 mph (40.23 km/h) | 23.16 mph (37.27 km/h) |
| 30 mph (48.28 km/h) | 27.79 mph (44.73 km/h) |
| 35 mph (56.33 km/h) | 32.42 mph (52.18 km/h) |
| 40 mph (64.37 km/h) | 37.06 mph (59.64 km/h) |
| 45 mph (72.42 km/h) | 41.69 mph (67.09 km/h) |
| 50 mph (80.47 km/h) | 46.32 mph (74.55 km/h) |
| 55 mph (88.51 km/h) | 50.95 mph (82 km/h) |
| 60 mph (96.56 km/h) | 55.58 mph (89.46 km/h) |
| 65 mph (104.61 km/h) | 60.22 mph (96.91 km/h) |
| 70 mph (112.65 km/h) | 64.85 mph (104.36 km/h) |
| 75 mph (120.7 km/h) | 69.48 mph (111.82 km/h) |
| 80 mph (128.75 km/h) | 74.11 mph (119.27 km/h) |
| 85 mph (136.79 km/h) | 78.75 mph (126.73 km/h) |
| 90 mph (144.84 km/h) | 83.38 mph (134.18 km/h) |
| 95 mph (152.89 km/h) | 88.01 mph (141.64 km/h) |
| 100 mph (160.93 km/h) | 92.64 mph (149.09 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2180 | 2532 | 2727 | 2848 | 2978 | 3071 | 3173 | 3293 | 3460 | 3627 | 3813 | 3961 | 4230 | 4527 | 4759 | 4907 | 4991 | 5297 | 5724 | 6651 |
Better Fuel Economy Factory Ratios Increased Power
