Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/40-16 | 190/45-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.2 (538.4) | 22.73 (577.4) | 1.54 (39) 7.2% |
| Width inches (mm) | 6.5 (165) | 7.48 (190) | 0.98 (25) 15.2% |
| Circum. inches (mm) | 66.59 (1691.43) | 71.42 (1813.96) | 4.82 (122.52) 7.2% |
| Sidewall Height inches (mm) | 2.6 (66) | 3.37 (85.5) | 0.77 (19.5) 29.5% |
| Revolutions per mile (km) | 951.47 (591.21) | 887.2 (551.28) | -64.27 (-39.93) -6.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.45 mph (34.52 km/h) |
| 25 mph (40.23 km/h) | 26.81 mph (43.15 km/h) |
| 30 mph (48.28 km/h) | 32.17 mph (51.78 km/h) |
| 35 mph (56.33 km/h) | 37.54 mph (60.41 km/h) |
| 40 mph (64.37 km/h) | 42.9 mph (69.04 km/h) |
| 45 mph (72.42 km/h) | 48.26 mph (77.67 km/h) |
| 50 mph (80.47 km/h) | 53.62 mph (86.3 km/h) |
| 55 mph (88.51 km/h) | 58.98 mph (94.93 km/h) |
| 60 mph (96.56 km/h) | 64.35 mph (103.56 km/h) |
| 65 mph (104.61 km/h) | 69.71 mph (112.19 km/h) |
| 70 mph (112.65 km/h) | 75.07 mph (120.81 km/h) |
| 75 mph (120.7 km/h) | 80.43 mph (129.44 km/h) |
| 80 mph (128.75 km/h) | 85.79 mph (138.07 km/h) |
| 85 mph (136.79 km/h) | 91.16 mph (146.7 km/h) |
| 90 mph (144.84 km/h) | 96.52 mph (155.33 km/h) |
| 95 mph (152.89 km/h) | 101.88 mph (163.96 km/h) |
| 100 mph (160.93 km/h) | 107.24 mph (172.59 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2258 | 2623 | 2825 | 2949 | 3084 | 3180 | 3286 | 3411 | 3584 | 3757 | 3949 | 4102 | 4381 | 4688 | 4929 | 5082 | 5169 | 5486 | 5928 | 6889 |
Better Fuel Economy Factory Ratios Increased Power
