Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/30-20 | 280/30-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.97 (685) | 26.61 (676) | -0.35 (-9) -1.3% |
| Width inches (mm) | 11.61 (295) | 11.02 (280) | -0.59 (-15) -5.1% |
| Circum. inches (mm) | 84.72 (2151.99) | 83.61 (2123.72) | -1.11 (-28.27) -1.3% |
| Sidewall Height inches (mm) | 3.48 (88.5) | 3.31 (84) | -0.18 (-4.5) -5.1% |
| Revolutions per mile (km) | 747.84 (464.69) | 757.8 (470.87) | 9.96 (6.19) 1.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.74 mph (31.76 km/h) |
| 25 mph (40.23 km/h) | 24.67 mph (39.71 km/h) |
| 30 mph (48.28 km/h) | 29.61 mph (47.65 km/h) |
| 35 mph (56.33 km/h) | 34.54 mph (55.59 km/h) |
| 40 mph (64.37 km/h) | 39.47 mph (63.53 km/h) |
| 45 mph (72.42 km/h) | 44.41 mph (71.47 km/h) |
| 50 mph (80.47 km/h) | 49.34 mph (79.41 km/h) |
| 55 mph (88.51 km/h) | 54.28 mph (87.35 km/h) |
| 60 mph (96.56 km/h) | 59.21 mph (95.29 km/h) |
| 65 mph (104.61 km/h) | 64.15 mph (103.23 km/h) |
| 70 mph (112.65 km/h) | 69.08 mph (111.17 km/h) |
| 75 mph (120.7 km/h) | 74.01 mph (119.12 km/h) |
| 80 mph (128.75 km/h) | 78.95 mph (127.06 km/h) |
| 85 mph (136.79 km/h) | 83.88 mph (135 km/h) |
| 90 mph (144.84 km/h) | 88.82 mph (142.94 km/h) |
| 95 mph (152.89 km/h) | 93.75 mph (150.88 km/h) |
| 100 mph (160.93 km/h) | 98.69 mph (158.82 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1928 | 2240 | 2413 | 2519 | 2634 | 2716 | 2807 | 2913 | 3061 | 3209 | 3373 | 3504 | 3742 | 4005 | 4210 | 4341 | 4415 | 4686 | 5063 | 5884 |
Better Fuel Economy Factory Ratios Increased Power
