Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/65-13 | 170/50-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.96 (557.7) | 19.69 (500.2) | -2.26 (-57.5) -10.3% |
| Width inches (mm) | 6.89 (175) | 6.69 (170) | -0.2 (-5) -2.9% |
| Circum. inches (mm) | 68.98 (1752.07) | 61.87 (1571.42) | -7.11 (-180.64) -10.3% |
| Sidewall Height inches (mm) | 4.48 (113.75) | 3.35 (85) | -1.13 (-28.75) -25.3% |
| Revolutions per mile (km) | 918.54 (570.75) | 1024.13 (636.36) | 105.59 (65.61) 11.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.94 mph (28.87 km/h) |
| 25 mph (40.23 km/h) | 22.42 mph (36.09 km/h) |
| 30 mph (48.28 km/h) | 26.91 mph (43.3 km/h) |
| 35 mph (56.33 km/h) | 31.39 mph (50.52 km/h) |
| 40 mph (64.37 km/h) | 35.88 mph (57.74 km/h) |
| 45 mph (72.42 km/h) | 40.36 mph (64.95 km/h) |
| 50 mph (80.47 km/h) | 44.84 mph (72.17 km/h) |
| 55 mph (88.51 km/h) | 49.33 mph (79.39 km/h) |
| 60 mph (96.56 km/h) | 53.81 mph (86.61 km/h) |
| 65 mph (104.61 km/h) | 58.3 mph (93.82 km/h) |
| 70 mph (112.65 km/h) | 62.78 mph (101.04 km/h) |
| 75 mph (120.7 km/h) | 67.27 mph (108.26 km/h) |
| 80 mph (128.75 km/h) | 71.75 mph (115.47 km/h) |
| 85 mph (136.79 km/h) | 76.24 mph (122.69 km/h) |
| 90 mph (144.84 km/h) | 80.72 mph (129.91 km/h) |
| 95 mph (152.89 km/h) | 85.21 mph (137.12 km/h) |
| 100 mph (160.93 km/h) | 89.69 mph (144.34 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
