Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/50-13 | 175/40-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.89 (505.2) | 18.51 (470.2) | -1.38 (-35) -6.9% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 62.49 (1587.13) | 58.16 (1477.18) | -4.33 (-109.96) -6.9% |
| Sidewall Height inches (mm) | 3.44 (87.5) | 2.76 (70) | -0.69 (-17.5) -20% |
| Revolutions per mile (km) | 1013.99 (630.07) | 1089.47 (676.97) | 75.48 (46.9) 7.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.61 mph (29.96 km/h) |
| 25 mph (40.23 km/h) | 23.27 mph (37.45 km/h) |
| 30 mph (48.28 km/h) | 27.92 mph (44.94 km/h) |
| 35 mph (56.33 km/h) | 32.58 mph (52.42 km/h) |
| 40 mph (64.37 km/h) | 37.23 mph (59.91 km/h) |
| 45 mph (72.42 km/h) | 41.88 mph (67.4 km/h) |
| 50 mph (80.47 km/h) | 46.54 mph (74.89 km/h) |
| 55 mph (88.51 km/h) | 51.19 mph (82.38 km/h) |
| 60 mph (96.56 km/h) | 55.84 mph (89.87 km/h) |
| 65 mph (104.61 km/h) | 60.5 mph (97.36 km/h) |
| 70 mph (112.65 km/h) | 65.15 mph (104.85 km/h) |
| 75 mph (120.7 km/h) | 69.8 mph (112.34 km/h) |
| 80 mph (128.75 km/h) | 74.46 mph (119.83 km/h) |
| 85 mph (136.79 km/h) | 79.11 mph (127.32 km/h) |
| 90 mph (144.84 km/h) | 83.76 mph (134.81 km/h) |
| 95 mph (152.89 km/h) | 88.42 mph (142.3 km/h) |
| 100 mph (160.93 km/h) | 93.07 mph (149.79 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
