Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/45-17 | 185/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.91 (607.3) | 23.56 (598.3) | -0.35 (-9) -1.5% |
| Width inches (mm) | 7.68 (195) | 7.28 (185) | -0.39 (-10) -5.1% |
| Circum. inches (mm) | 75.11 (1907.89) | 74 (1879.61) | -1.11 (-28.27) -1.5% |
| Sidewall Height inches (mm) | 3.45 (87.75) | 3.28 (83.25) | -0.18 (-4.5) -5.1% |
| Revolutions per mile (km) | 843.52 (524.14) | 856.21 (532.02) | 12.69 (7.88) 1.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.7 mph (31.71 km/h) |
| 25 mph (40.23 km/h) | 24.63 mph (39.64 km/h) |
| 30 mph (48.28 km/h) | 29.56 mph (47.56 km/h) |
| 35 mph (56.33 km/h) | 34.48 mph (55.49 km/h) |
| 40 mph (64.37 km/h) | 39.41 mph (63.42 km/h) |
| 45 mph (72.42 km/h) | 44.33 mph (71.35 km/h) |
| 50 mph (80.47 km/h) | 49.26 mph (79.27 km/h) |
| 55 mph (88.51 km/h) | 54.18 mph (87.2 km/h) |
| 60 mph (96.56 km/h) | 59.11 mph (95.13 km/h) |
| 65 mph (104.61 km/h) | 64.04 mph (103.06 km/h) |
| 70 mph (112.65 km/h) | 68.96 mph (110.98 km/h) |
| 75 mph (120.7 km/h) | 73.89 mph (118.91 km/h) |
| 80 mph (128.75 km/h) | 78.81 mph (126.84 km/h) |
| 85 mph (136.79 km/h) | 83.74 mph (134.77 km/h) |
| 90 mph (144.84 km/h) | 88.67 mph (142.69 km/h) |
| 95 mph (152.89 km/h) | 93.59 mph (150.62 km/h) |
| 100 mph (160.93 km/h) | 98.52 mph (158.55 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
