Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/75-13 | 175/70-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.93 (607.7) | 22.65 (575.2) | -1.28 (-32.5) -5.3% |
| Width inches (mm) | 7.28 (185) | 6.89 (175) | -0.39 (-10) -5.4% |
| Circum. inches (mm) | 75.16 (1909.15) | 71.14 (1807.04) | -4.02 (-102.1) -5.3% |
| Sidewall Height inches (mm) | 5.46 (138.75) | 4.82 (122.5) | -0.64 (-16.25) -11.7% |
| Revolutions per mile (km) | 842.97 (523.79) | 890.59 (553.39) | 47.63 (29.6) 5.7% |
175/70-13 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.93 mph (30.47 km/h) |
| 25 mph (40.23 km/h) | 23.66 mph (38.08 km/h) |
| 30 mph (48.28 km/h) | 28.4 mph (45.7 km/h) |
| 35 mph (56.33 km/h) | 33.13 mph (53.31 km/h) |
| 40 mph (64.37 km/h) | 37.86 mph (60.93 km/h) |
| 45 mph (72.42 km/h) | 42.59 mph (68.55 km/h) |
| 50 mph (80.47 km/h) | 47.33 mph (76.16 km/h) |
| 55 mph (88.51 km/h) | 52.06 mph (83.78 km/h) |
| 60 mph (96.56 km/h) | 56.79 mph (91.4 km/h) |
| 65 mph (104.61 km/h) | 61.52 mph (99.01 km/h) |
| 70 mph (112.65 km/h) | 66.26 mph (106.63 km/h) |
| 75 mph (120.7 km/h) | 70.99 mph (114.25 km/h) |
| 80 mph (128.75 km/h) | 75.72 mph (121.86 km/h) |
| 85 mph (136.79 km/h) | 80.45 mph (129.48 km/h) |
| 90 mph (144.84 km/h) | 85.19 mph (137.1 km/h) |
| 95 mph (152.89 km/h) | 89.92 mph (144.71 km/h) |
| 100 mph (160.93 km/h) | 94.65 mph (152.33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2266 | 2633 | 2835 | 2961 | 3096 | 3192 | 3298 | 3424 | 3597 | 3771 | 3964 | 4118 | 4398 | 4706 | 4947 | 5102 | 5189 | 5507 | 5950 | 6915 |
Better Fuel Economy Factory Ratios Increased Power
