Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/40-17 | 185/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.14 (587.8) | 23.56 (598.3) | 0.41 (10.5) 1.8% |
| Width inches (mm) | 7.68 (195) | 7.28 (185) | -0.39 (-10) -5.1% |
| Circum. inches (mm) | 72.7 (1846.63) | 74 (1879.61) | 1.3 (32.99) 1.8% |
| Sidewall Height inches (mm) | 3.07 (78) | 3.28 (83.25) | 0.21 (5.25) 6.7% |
| Revolutions per mile (km) | 871.5 (541.53) | 856.21 (532.02) | -15.29 (-9.5) -1.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.36 mph (32.76 km/h) |
| 25 mph (40.23 km/h) | 25.45 mph (40.95 km/h) |
| 30 mph (48.28 km/h) | 30.54 mph (49.14 km/h) |
| 35 mph (56.33 km/h) | 35.63 mph (57.33 km/h) |
| 40 mph (64.37 km/h) | 40.71 mph (65.52 km/h) |
| 45 mph (72.42 km/h) | 45.8 mph (73.71 km/h) |
| 50 mph (80.47 km/h) | 50.89 mph (81.9 km/h) |
| 55 mph (88.51 km/h) | 55.98 mph (90.1 km/h) |
| 60 mph (96.56 km/h) | 61.07 mph (98.29 km/h) |
| 65 mph (104.61 km/h) | 66.16 mph (106.48 km/h) |
| 70 mph (112.65 km/h) | 71.25 mph (114.67 km/h) |
| 75 mph (120.7 km/h) | 76.34 mph (122.86 km/h) |
| 80 mph (128.75 km/h) | 81.43 mph (131.05 km/h) |
| 85 mph (136.79 km/h) | 86.52 mph (139.24 km/h) |
| 90 mph (144.84 km/h) | 91.61 mph (147.43 km/h) |
| 95 mph (152.89 km/h) | 96.7 mph (155.62 km/h) |
| 100 mph (160.93 km/h) | 101.79 mph (163.81 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2179 | 2531 | 2726 | 2846 | 2976 | 3069 | 3171 | 3292 | 3458 | 3625 | 3811 | 3959 | 4228 | 4525 | 4756 | 4905 | 4988 | 5294 | 5721 | 6648 |
Better Fuel Economy Factory Ratios Increased Power
