Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/65-13 | 180/65-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.96 (557.7) | 22.21 (564.2) | 0.26 (6.5) 1.2% |
| Width inches (mm) | 6.89 (175) | 7.09 (180) | 0.2 (5) 2.9% |
| Circum. inches (mm) | 68.98 (1752.07) | 69.78 (1772.49) | 0.8 (20.42) 1.2% |
| Sidewall Height inches (mm) | 4.48 (113.75) | 4.61 (117) | 0.13 (3.25) 2.9% |
| Revolutions per mile (km) | 918.54 (570.75) | 907.96 (564.18) | -10.58 (-6.58) -1.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.23 mph (32.56 km/h) |
| 25 mph (40.23 km/h) | 25.29 mph (40.7 km/h) |
| 30 mph (48.28 km/h) | 30.35 mph (48.84 km/h) |
| 35 mph (56.33 km/h) | 35.41 mph (56.98 km/h) |
| 40 mph (64.37 km/h) | 40.47 mph (65.12 km/h) |
| 45 mph (72.42 km/h) | 45.52 mph (73.26 km/h) |
| 50 mph (80.47 km/h) | 50.58 mph (81.41 km/h) |
| 55 mph (88.51 km/h) | 55.64 mph (89.55 km/h) |
| 60 mph (96.56 km/h) | 60.7 mph (97.69 km/h) |
| 65 mph (104.61 km/h) | 65.76 mph (105.83 km/h) |
| 70 mph (112.65 km/h) | 70.82 mph (113.97 km/h) |
| 75 mph (120.7 km/h) | 75.87 mph (122.11 km/h) |
| 80 mph (128.75 km/h) | 80.93 mph (130.25 km/h) |
| 85 mph (136.79 km/h) | 85.99 mph (138.39 km/h) |
| 90 mph (144.84 km/h) | 91.05 mph (146.53 km/h) |
| 95 mph (152.89 km/h) | 96.11 mph (154.67 km/h) |
| 100 mph (160.93 km/h) | 101.17 mph (162.81 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2311 | 2684 | 2891 | 3019 | 3156 | 3254 | 3363 | 3490 | 3667 | 3844 | 4041 | 4198 | 4484 | 4798 | 5044 | 5201 | 5290 | 5614 | 6067 | 7050 |
Better Fuel Economy Factory Ratios Increased Power
