Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/80-13 | 165/70-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.39 (594.2) | 22.09 (561.2) | -1.3 (-33) -5.6% |
| Width inches (mm) | 6.5 (165) | 6.5 (165) | 0 (0) 0% |
| Circum. inches (mm) | 73.49 (1866.73) | 69.41 (1763.06) | -4.08 (-103.67) -5.6% |
| Sidewall Height inches (mm) | 5.2 (132) | 4.55 (115.5) | -0.65 (-16.5) -12.5% |
| Revolutions per mile (km) | 862.12 (535.69) | 912.81 (567.19) | 50.69 (31.5) 5.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.89 mph (30.4 km/h) |
| 25 mph (40.23 km/h) | 23.61 mph (38 km/h) |
| 30 mph (48.28 km/h) | 28.33 mph (45.6 km/h) |
| 35 mph (56.33 km/h) | 33.06 mph (53.2 km/h) |
| 40 mph (64.37 km/h) | 37.78 mph (60.8 km/h) |
| 45 mph (72.42 km/h) | 42.5 mph (68.4 km/h) |
| 50 mph (80.47 km/h) | 47.22 mph (76 km/h) |
| 55 mph (88.51 km/h) | 51.95 mph (83.6 km/h) |
| 60 mph (96.56 km/h) | 56.67 mph (91.2 km/h) |
| 65 mph (104.61 km/h) | 61.39 mph (98.8 km/h) |
| 70 mph (112.65 km/h) | 66.11 mph (106.4 km/h) |
| 75 mph (120.7 km/h) | 70.83 mph (114 km/h) |
| 80 mph (128.75 km/h) | 75.56 mph (121.6 km/h) |
| 85 mph (136.79 km/h) | 80.28 mph (129.2 km/h) |
| 90 mph (144.84 km/h) | 85 mph (136.8 km/h) |
| 95 mph (152.89 km/h) | 89.72 mph (144.4 km/h) |
| 100 mph (160.93 km/h) | 94.45 mph (152 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2323 | 2699 | 2906 | 3035 | 3173 | 3272 | 3381 | 3509 | 3687 | 3865 | 4063 | 4221 | 4507 | 4824 | 5071 | 5229 | 5318 | 5644 | 6099 | 7087 |
Better Fuel Economy Factory Ratios Increased Power
