Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 200/55-18 | 180/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.66 (677.2) | 27.63 (701.8) | 0.97 (24.6) 3.6% |
| Width inches (mm) | 7.87 (200) | 7.09 (180) | -0.79 (-20) -10% |
| Circum. inches (mm) | 83.76 (2127.49) | 86.8 (2204.77) | 3.04 (77.28) 3.6% |
| Sidewall Height inches (mm) | 4.33 (110) | 5.31 (135) | 0.98 (25) 22.7% |
| Revolutions per mile (km) | 756.45 (470.04) | 729.94 (453.56) | -26.52 (-16.48) -3.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.73 mph (33.36 km/h) |
| 25 mph (40.23 km/h) | 25.91 mph (41.7 km/h) |
| 30 mph (48.28 km/h) | 31.09 mph (50.03 km/h) |
| 35 mph (56.33 km/h) | 36.27 mph (58.37 km/h) |
| 40 mph (64.37 km/h) | 41.45 mph (66.71 km/h) |
| 45 mph (72.42 km/h) | 46.63 mph (75.05 km/h) |
| 50 mph (80.47 km/h) | 51.82 mph (83.39 km/h) |
| 55 mph (88.51 km/h) | 57 mph (91.73 km/h) |
| 60 mph (96.56 km/h) | 62.18 mph (100.07 km/h) |
| 65 mph (104.61 km/h) | 67.36 mph (108.41 km/h) |
| 70 mph (112.65 km/h) | 72.54 mph (116.75 km/h) |
| 75 mph (120.7 km/h) | 77.72 mph (125.09 km/h) |
| 80 mph (128.75 km/h) | 82.91 mph (133.42 km/h) |
| 85 mph (136.79 km/h) | 88.09 mph (141.76 km/h) |
| 90 mph (144.84 km/h) | 93.27 mph (150.1 km/h) |
| 95 mph (152.89 km/h) | 98.45 mph (158.44 km/h) |
| 100 mph (160.93 km/h) | 103.63 mph (166.78 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1858 | 2158 | 2324 | 2427 | 2537 | 2616 | 2703 | 2806 | 2948 | 3091 | 3249 | 3375 | 3604 | 3857 | 4055 | 4181 | 4253 | 4513 | 4877 | 5668 |
Better Fuel Economy Factory Ratios Increased Power
