Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/90-15 | 190/40-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.92 (633) | 20.98 (533) | -3.94 (-100) -15.8% |
| Width inches (mm) | 5.51 (140) | 7.48 (190) | 1.97 (50) 35.7% |
| Circum. inches (mm) | 78.29 (1988.63) | 65.92 (1674.47) | -12.37 (-314.16) -15.8% |
| Sidewall Height inches (mm) | 4.96 (126) | 2.99 (76) | -1.97 (-50) -39.7% |
| Revolutions per mile (km) | 809.27 (502.86) | 961.11 (597.2) | 151.83 (94.34) 18.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.84 mph (27.1 km/h) |
| 25 mph (40.23 km/h) | 21.05 mph (33.88 km/h) |
| 30 mph (48.28 km/h) | 25.26 mph (40.65 km/h) |
| 35 mph (56.33 km/h) | 29.47 mph (47.43 km/h) |
| 40 mph (64.37 km/h) | 33.68 mph (54.2 km/h) |
| 45 mph (72.42 km/h) | 37.89 mph (60.98 km/h) |
| 50 mph (80.47 km/h) | 42.1 mph (67.76 km/h) |
| 55 mph (88.51 km/h) | 46.31 mph (74.53 km/h) |
| 60 mph (96.56 km/h) | 50.52 mph (81.31 km/h) |
| 65 mph (104.61 km/h) | 54.73 mph (88.08 km/h) |
| 70 mph (112.65 km/h) | 58.94 mph (94.86 km/h) |
| 75 mph (120.7 km/h) | 63.15 mph (101.63 km/h) |
| 80 mph (128.75 km/h) | 67.36 mph (108.41 km/h) |
| 85 mph (136.79 km/h) | 71.57 mph (115.18 km/h) |
| 90 mph (144.84 km/h) | 75.78 mph (121.96 km/h) |
| 95 mph (152.89 km/h) | 79.99 mph (128.74 km/h) |
| 100 mph (160.93 km/h) | 84.2 mph (135.51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
