Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 200/55-18 | 290/55-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.66 (677.2) | 32.56 (827) | 5.9 (149.8) 22.1% |
| Width inches (mm) | 7.87 (200) | 11.42 (290) | 3.54 (90) 45% |
| Circum. inches (mm) | 83.76 (2127.49) | 102.29 (2598.1) | 18.53 (470.61) 22.1% |
| Sidewall Height inches (mm) | 4.33 (110) | 6.28 (159.5) | 1.95 (49.5) 45% |
| Revolutions per mile (km) | 756.45 (470.04) | 619.43 (384.9) | -137.02 (-85.14) -18.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.42 mph (39.31 km/h) |
| 25 mph (40.23 km/h) | 30.53 mph (49.13 km/h) |
| 30 mph (48.28 km/h) | 36.64 mph (58.96 km/h) |
| 35 mph (56.33 km/h) | 42.74 mph (68.79 km/h) |
| 40 mph (64.37 km/h) | 48.85 mph (78.61 km/h) |
| 45 mph (72.42 km/h) | 54.95 mph (88.44 km/h) |
| 50 mph (80.47 km/h) | 61.06 mph (98.27 km/h) |
| 55 mph (88.51 km/h) | 67.17 mph (108.09 km/h) |
| 60 mph (96.56 km/h) | 73.27 mph (117.92 km/h) |
| 65 mph (104.61 km/h) | 79.38 mph (127.75 km/h) |
| 70 mph (112.65 km/h) | 85.48 mph (137.57 km/h) |
| 75 mph (120.7 km/h) | 91.59 mph (147.4 km/h) |
| 80 mph (128.75 km/h) | 97.7 mph (157.23 km/h) |
| 85 mph (136.79 km/h) | 103.8 mph (167.05 km/h) |
| 90 mph (144.84 km/h) | 109.91 mph (176.88 km/h) |
| 95 mph (152.89 km/h) | 116.01 mph (186.71 km/h) |
| 100 mph (160.93 km/h) | 122.12 mph (196.53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1576 | 1831 | 1972 | 2059 | 2153 | 2220 | 2294 | 2381 | 2502 | 2623 | 2757 | 2864 | 3059 | 3273 | 3441 | 3548 | 3609 | 3830 | 4139 | 4810 |
Better Fuel Economy Factory Ratios Increased Power
