Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/60-18 | 200/50-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.61 (625.2) | 25.87 (657.2) | 1.26 (32) 5.1% |
| Width inches (mm) | 5.51 (140) | 7.87 (200) | 2.36 (60) 42.9% |
| Circum. inches (mm) | 77.33 (1964.12) | 81.29 (2064.65) | 3.96 (100.53) 5.1% |
| Sidewall Height inches (mm) | 3.31 (84) | 3.94 (100) | 0.63 (16) 19% |
| Revolutions per mile (km) | 819.37 (509.13) | 779.47 (484.34) | -39.9 (-24.79) -4.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.02 mph (33.83 km/h) |
| 25 mph (40.23 km/h) | 26.28 mph (42.29 km/h) |
| 30 mph (48.28 km/h) | 31.54 mph (50.75 km/h) |
| 35 mph (56.33 km/h) | 36.79 mph (59.21 km/h) |
| 40 mph (64.37 km/h) | 42.05 mph (67.67 km/h) |
| 45 mph (72.42 km/h) | 47.3 mph (76.13 km/h) |
| 50 mph (80.47 km/h) | 52.56 mph (84.59 km/h) |
| 55 mph (88.51 km/h) | 57.82 mph (93.04 km/h) |
| 60 mph (96.56 km/h) | 63.07 mph (101.5 km/h) |
| 65 mph (104.61 km/h) | 68.33 mph (109.96 km/h) |
| 70 mph (112.65 km/h) | 73.58 mph (118.42 km/h) |
| 75 mph (120.7 km/h) | 78.84 mph (126.88 km/h) |
| 80 mph (128.75 km/h) | 84.09 mph (135.34 km/h) |
| 85 mph (136.79 km/h) | 89.35 mph (143.8 km/h) |
| 90 mph (144.84 km/h) | 94.61 mph (152.25 km/h) |
| 95 mph (152.89 km/h) | 99.86 mph (160.71 km/h) |
| 100 mph (160.93 km/h) | 105.12 mph (169.17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1984 | 2304 | 2482 | 2591 | 2710 | 2794 | 2887 | 2997 | 3148 | 3300 | 3469 | 3604 | 3849 | 4119 | 4330 | 4465 | 4541 | 4820 | 5208 | 6052 |
Better Fuel Economy Factory Ratios Increased Power
