Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/80-12 | 175/70-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.76 (552.8) | 22.65 (575.2) | 0.88 (22.4) 4.1% |
| Width inches (mm) | 6.1 (155) | 6.89 (175) | 0.79 (20) 12.9% |
| Circum. inches (mm) | 68.37 (1736.67) | 71.14 (1807.04) | 2.77 (70.37) 4.1% |
| Sidewall Height inches (mm) | 4.88 (124) | 4.82 (122.5) | -0.06 (-1.5) -1.2% |
| Revolutions per mile (km) | 926.68 (575.81) | 890.59 (553.39) | -36.09 (-22.42) -3.9% |
175/70-13 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.81 mph (33.49 km/h) |
| 25 mph (40.23 km/h) | 26.01 mph (41.86 km/h) |
| 30 mph (48.28 km/h) | 31.22 mph (50.24 km/h) |
| 35 mph (56.33 km/h) | 36.42 mph (58.61 km/h) |
| 40 mph (64.37 km/h) | 41.62 mph (66.98 km/h) |
| 45 mph (72.42 km/h) | 46.82 mph (75.36 km/h) |
| 50 mph (80.47 km/h) | 52.03 mph (83.73 km/h) |
| 55 mph (88.51 km/h) | 57.23 mph (92.1 km/h) |
| 60 mph (96.56 km/h) | 62.43 mph (100.47 km/h) |
| 65 mph (104.61 km/h) | 67.63 mph (108.85 km/h) |
| 70 mph (112.65 km/h) | 72.84 mph (117.22 km/h) |
| 75 mph (120.7 km/h) | 78.04 mph (125.59 km/h) |
| 80 mph (128.75 km/h) | 83.24 mph (133.96 km/h) |
| 85 mph (136.79 km/h) | 88.44 mph (142.34 km/h) |
| 90 mph (144.84 km/h) | 93.65 mph (150.71 km/h) |
| 95 mph (152.89 km/h) | 98.85 mph (159.08 km/h) |
| 100 mph (160.93 km/h) | 104.05 mph (167.46 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
