Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/45-15 | 185/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.91 (556.5) | 21.56 (547.5) | -0.35 (-9) -1.6% |
| Width inches (mm) | 7.68 (195) | 7.28 (185) | -0.39 (-10) -5.1% |
| Circum. inches (mm) | 68.83 (1748.3) | 67.72 (1720.02) | -1.11 (-28.27) -1.6% |
| Sidewall Height inches (mm) | 3.45 (87.75) | 3.28 (83.25) | -0.18 (-4.5) -5.1% |
| Revolutions per mile (km) | 920.52 (571.98) | 935.65 (581.39) | 15.13 (9.4) 1.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.68 mph (31.67 km/h) |
| 25 mph (40.23 km/h) | 24.6 mph (39.58 km/h) |
| 30 mph (48.28 km/h) | 29.51 mph (47.5 km/h) |
| 35 mph (56.33 km/h) | 34.43 mph (55.42 km/h) |
| 40 mph (64.37 km/h) | 39.35 mph (63.33 km/h) |
| 45 mph (72.42 km/h) | 44.27 mph (71.25 km/h) |
| 50 mph (80.47 km/h) | 49.19 mph (79.17 km/h) |
| 55 mph (88.51 km/h) | 54.11 mph (87.08 km/h) |
| 60 mph (96.56 km/h) | 59.03 mph (95 km/h) |
| 65 mph (104.61 km/h) | 63.95 mph (102.92 km/h) |
| 70 mph (112.65 km/h) | 68.87 mph (110.83 km/h) |
| 75 mph (120.7 km/h) | 73.79 mph (118.75 km/h) |
| 80 mph (128.75 km/h) | 78.71 mph (126.67 km/h) |
| 85 mph (136.79 km/h) | 83.63 mph (134.58 km/h) |
| 90 mph (144.84 km/h) | 88.54 mph (142.5 km/h) |
| 95 mph (152.89 km/h) | 93.46 mph (150.42 km/h) |
| 100 mph (160.93 km/h) | 98.38 mph (158.33 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
