Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-13 | 165/50-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.34 (618.2) | 19.5 (495.2) | -4.84 (-123) -19.9% |
| Width inches (mm) | 7.09 (180) | 6.5 (165) | -0.59 (-15) -8.3% |
| Circum. inches (mm) | 76.46 (1942.13) | 61.25 (1555.72) | -15.21 (-386.42) -19.9% |
| Sidewall Height inches (mm) | 5.67 (144) | 3.25 (82.5) | -2.42 (-61.5) -42.7% |
| Revolutions per mile (km) | 828.65 (514.9) | 1034.47 (642.79) | 205.82 (127.89) 24.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.02 mph (25.78 km/h) |
| 25 mph (40.23 km/h) | 20.03 mph (32.23 km/h) |
| 30 mph (48.28 km/h) | 24.03 mph (38.67 km/h) |
| 35 mph (56.33 km/h) | 28.04 mph (45.12 km/h) |
| 40 mph (64.37 km/h) | 32.04 mph (51.57 km/h) |
| 45 mph (72.42 km/h) | 36.05 mph (58.01 km/h) |
| 50 mph (80.47 km/h) | 40.05 mph (64.46 km/h) |
| 55 mph (88.51 km/h) | 44.06 mph (70.9 km/h) |
| 60 mph (96.56 km/h) | 48.06 mph (77.35 km/h) |
| 65 mph (104.61 km/h) | 52.07 mph (83.79 km/h) |
| 70 mph (112.65 km/h) | 56.07 mph (90.24 km/h) |
| 75 mph (120.7 km/h) | 60.08 mph (96.69 km/h) |
| 80 mph (128.75 km/h) | 64.08 mph (103.13 km/h) |
| 85 mph (136.79 km/h) | 68.09 mph (109.58 km/h) |
| 90 mph (144.84 km/h) | 72.09 mph (116.02 km/h) |
| 95 mph (152.89 km/h) | 76.1 mph (122.47 km/h) |
| 100 mph (160.93 km/h) | 80.1 mph (128.91 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
