Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/60-13 | 170/70-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.27 (540.2) | 22.37 (568.2) | 1.1 (28) 5.2% |
| Width inches (mm) | 6.89 (175) | 6.69 (170) | -0.2 (-5) -2.9% |
| Circum. inches (mm) | 66.81 (1697.09) | 70.28 (1785.05) | 3.46 (87.96) 5.2% |
| Sidewall Height inches (mm) | 4.13 (105) | 4.69 (119) | 0.55 (14) 13.3% |
| Revolutions per mile (km) | 948.3 (589.24) | 901.57 (560.21) | -46.73 (-29.04) -4.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.04 mph (33.86 km/h) |
| 25 mph (40.23 km/h) | 26.3 mph (42.32 km/h) |
| 30 mph (48.28 km/h) | 31.55 mph (50.78 km/h) |
| 35 mph (56.33 km/h) | 36.81 mph (59.25 km/h) |
| 40 mph (64.37 km/h) | 42.07 mph (67.71 km/h) |
| 45 mph (72.42 km/h) | 47.33 mph (76.17 km/h) |
| 50 mph (80.47 km/h) | 52.59 mph (84.64 km/h) |
| 55 mph (88.51 km/h) | 57.85 mph (93.1 km/h) |
| 60 mph (96.56 km/h) | 63.11 mph (101.57 km/h) |
| 65 mph (104.61 km/h) | 68.37 mph (110.03 km/h) |
| 70 mph (112.65 km/h) | 73.63 mph (118.49 km/h) |
| 75 mph (120.7 km/h) | 78.89 mph (126.96 km/h) |
| 80 mph (128.75 km/h) | 84.15 mph (135.42 km/h) |
| 85 mph (136.79 km/h) | 89.41 mph (143.88 km/h) |
| 90 mph (144.84 km/h) | 94.66 mph (152.35 km/h) |
| 95 mph (152.89 km/h) | 99.92 mph (160.81 km/h) |
| 100 mph (160.93 km/h) | 105.18 mph (169.28 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2294 | 2665 | 2870 | 2997 | 3134 | 3232 | 3339 | 3466 | 3642 | 3817 | 4013 | 4169 | 4452 | 4764 | 5008 | 5165 | 5253 | 5575 | 6024 | 7000 |
Better Fuel Economy Factory Ratios Increased Power
