Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/60-19 | 175/45-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.27 (692.6) | 26.2 (665.5) | -1.07 (-27.1) -3.9% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 85.66 (2175.87) | 82.31 (2090.73) | -3.35 (-85.14) -3.9% |
| Sidewall Height inches (mm) | 4.13 (105) | 3.1 (78.75) | -1.03 (-26.25) -25% |
| Revolutions per mile (km) | 739.63 (459.59) | 769.75 (478.3) | 30.12 (18.71) 4.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.22 mph (30.93 km/h) |
| 25 mph (40.23 km/h) | 24.02 mph (38.66 km/h) |
| 30 mph (48.28 km/h) | 28.83 mph (46.39 km/h) |
| 35 mph (56.33 km/h) | 33.63 mph (54.12 km/h) |
| 40 mph (64.37 km/h) | 38.43 mph (61.86 km/h) |
| 45 mph (72.42 km/h) | 43.24 mph (69.59 km/h) |
| 50 mph (80.47 km/h) | 48.04 mph (77.32 km/h) |
| 55 mph (88.51 km/h) | 52.85 mph (85.05 km/h) |
| 60 mph (96.56 km/h) | 57.65 mph (92.78 km/h) |
| 65 mph (104.61 km/h) | 62.46 mph (100.51 km/h) |
| 70 mph (112.65 km/h) | 67.26 mph (108.25 km/h) |
| 75 mph (120.7 km/h) | 72.07 mph (115.98 km/h) |
| 80 mph (128.75 km/h) | 76.87 mph (123.71 km/h) |
| 85 mph (136.79 km/h) | 81.67 mph (131.44 km/h) |
| 90 mph (144.84 km/h) | 86.48 mph (139.17 km/h) |
| 95 mph (152.89 km/h) | 91.28 mph (146.91 km/h) |
| 100 mph (160.93 km/h) | 96.09 mph (154.64 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1959 | 2276 | 2451 | 2559 | 2676 | 2759 | 2851 | 2959 | 3109 | 3259 | 3426 | 3559 | 3801 | 4068 | 4276 | 4410 | 4485 | 4760 | 5143 | 5977 |
Better Fuel Economy Factory Ratios Increased Power
