Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 200/50-18 | 255/30-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.87 (657.2) | 24.02 (610.2) | -1.85 (-47) -7.2% |
| Width inches (mm) | 7.87 (200) | 10.04 (255) | 2.17 (55) 27.5% |
| Circum. inches (mm) | 81.29 (2064.65) | 75.47 (1917) | -5.81 (-147.65) -7.2% |
| Sidewall Height inches (mm) | 3.94 (100) | 3.01 (76.5) | -0.93 (-23.5) -23.5% |
| Revolutions per mile (km) | 779.47 (484.34) | 839.51 (521.65) | 60.04 (37.31) 7.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.57 mph (29.89 km/h) |
| 25 mph (40.23 km/h) | 23.21 mph (37.36 km/h) |
| 30 mph (48.28 km/h) | 27.85 mph (44.83 km/h) |
| 35 mph (56.33 km/h) | 32.5 mph (52.3 km/h) |
| 40 mph (64.37 km/h) | 37.14 mph (59.77 km/h) |
| 45 mph (72.42 km/h) | 41.78 mph (67.24 km/h) |
| 50 mph (80.47 km/h) | 46.42 mph (74.71 km/h) |
| 55 mph (88.51 km/h) | 51.07 mph (82.18 km/h) |
| 60 mph (96.56 km/h) | 55.71 mph (89.66 km/h) |
| 65 mph (104.61 km/h) | 60.35 mph (97.13 km/h) |
| 70 mph (112.65 km/h) | 64.99 mph (104.6 km/h) |
| 75 mph (120.7 km/h) | 69.64 mph (112.07 km/h) |
| 80 mph (128.75 km/h) | 74.28 mph (119.54 km/h) |
| 85 mph (136.79 km/h) | 78.92 mph (127.01 km/h) |
| 90 mph (144.84 km/h) | 83.56 mph (134.48 km/h) |
| 95 mph (152.89 km/h) | 88.21 mph (141.95 km/h) |
| 100 mph (160.93 km/h) | 92.85 mph (149.43 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2136 | 2482 | 2673 | 2791 | 2918 | 3009 | 3109 | 3227 | 3391 | 3555 | 3736 | 3882 | 4146 | 4436 | 4664 | 4809 | 4891 | 5191 | 5609 | 6518 |
Better Fuel Economy Factory Ratios Increased Power
