Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 200/50-18 | 250/30-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.87 (657.2) | 23.91 (607.2) | -1.97 (-50) -7.6% |
| Width inches (mm) | 7.87 (200) | 9.84 (250) | 1.97 (50) 25% |
| Circum. inches (mm) | 81.29 (2064.65) | 75.1 (1907.58) | -6.18 (-157.08) -7.6% |
| Sidewall Height inches (mm) | 3.94 (100) | 2.95 (75) | -0.98 (-25) -25% |
| Revolutions per mile (km) | 779.47 (484.34) | 843.66 (524.22) | 64.19 (39.88) 8.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.48 mph (29.74 km/h) |
| 25 mph (40.23 km/h) | 23.1 mph (37.17 km/h) |
| 30 mph (48.28 km/h) | 27.72 mph (44.61 km/h) |
| 35 mph (56.33 km/h) | 32.34 mph (52.04 km/h) |
| 40 mph (64.37 km/h) | 36.96 mph (59.48 km/h) |
| 45 mph (72.42 km/h) | 41.58 mph (66.91 km/h) |
| 50 mph (80.47 km/h) | 46.2 mph (74.35 km/h) |
| 55 mph (88.51 km/h) | 50.82 mph (81.78 km/h) |
| 60 mph (96.56 km/h) | 55.44 mph (89.21 km/h) |
| 65 mph (104.61 km/h) | 60.05 mph (96.65 km/h) |
| 70 mph (112.65 km/h) | 64.67 mph (104.08 km/h) |
| 75 mph (120.7 km/h) | 69.29 mph (111.52 km/h) |
| 80 mph (128.75 km/h) | 73.91 mph (118.95 km/h) |
| 85 mph (136.79 km/h) | 78.53 mph (126.39 km/h) |
| 90 mph (144.84 km/h) | 83.15 mph (133.82 km/h) |
| 95 mph (152.89 km/h) | 87.77 mph (141.26 km/h) |
| 100 mph (160.93 km/h) | 92.39 mph (148.69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2147 | 2494 | 2686 | 2805 | 2933 | 3024 | 3125 | 3243 | 3408 | 3572 | 3755 | 3901 | 4166 | 4458 | 4687 | 4833 | 4915 | 5217 | 5637 | 6550 |
Better Fuel Economy Factory Ratios Increased Power
