Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/55-20 | 295/55-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.21 (843.5) | 32.78 (832.5) | -0.43 (-11) -1.3% |
| Width inches (mm) | 12.01 (305) | 11.61 (295) | -0.39 (-10) -3.3% |
| Circum. inches (mm) | 104.33 (2649.93) | 102.97 (2615.38) | -1.36 (-34.56) -1.3% |
| Sidewall Height inches (mm) | 6.6 (167.75) | 6.39 (162.25) | -0.22 (-5.5) -3.3% |
| Revolutions per mile (km) | 607.31 (377.37) | 615.34 (382.35) | 8.02 (4.99) 1.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.74 mph (31.77 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) | 39.48 mph (63.53 km/h) |
| 45 mph (72.42 km/h) | 44.41 mph (71.48 km/h) |
| 50 mph (80.47 km/h) | 49.35 mph (79.42 km/h) |
| 55 mph (88.51 km/h) | 54.28 mph (87.36 km/h) |
| 60 mph (96.56 km/h) | 59.22 mph (95.3 km/h) |
| 65 mph (104.61 km/h) | 64.15 mph (103.24 km/h) |
| 70 mph (112.65 km/h) | 69.09 mph (111.19 km/h) |
| 75 mph (120.7 km/h) | 74.02 mph (119.13 km/h) |
| 80 mph (128.75 km/h) | 78.96 mph (127.07 km/h) |
| 85 mph (136.79 km/h) | 83.89 mph (135.01 km/h) |
| 90 mph (144.84 km/h) | 88.83 mph (142.95 km/h) |
| 95 mph (152.89 km/h) | 93.76 mph (150.89 km/h) |
| 100 mph (160.93 km/h) | 98.7 mph (158.84 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1566 | 1819 | 1959 | 2046 | 2139 | 2206 | 2279 | 2366 | 2485 | 2605 | 2739 | 2845 | 3039 | 3252 | 3418 | 3525 | 3585 | 3805 | 4111 | 4778 |
Better Fuel Economy Factory Ratios Increased Power
