Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/80-13 | 165/55-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.5 (546.2) | 20.15 (511.7) | -1.36 (-34.5) -6.3% |
| Width inches (mm) | 5.31 (135) | 6.5 (165) | 1.18 (30) 22.2% |
| Circum. inches (mm) | 67.56 (1715.94) | 63.29 (1607.55) | -4.27 (-108.38) -6.3% |
| Sidewall Height inches (mm) | 4.25 (108) | 3.57 (90.75) | -0.68 (-17.25) -16% |
| Revolutions per mile (km) | 937.88 (582.77) | 1001.11 (622.06) | 63.23 (39.29) 6.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.74 mph (30.15 km/h) |
| 25 mph (40.23 km/h) | 23.42 mph (37.69 km/h) |
| 30 mph (48.28 km/h) | 28.11 mph (45.23 km/h) |
| 35 mph (56.33 km/h) | 32.79 mph (52.77 km/h) |
| 40 mph (64.37 km/h) | 37.47 mph (60.31 km/h) |
| 45 mph (72.42 km/h) | 42.16 mph (67.85 km/h) |
| 50 mph (80.47 km/h) | 46.84 mph (75.38 km/h) |
| 55 mph (88.51 km/h) | 51.53 mph (82.92 km/h) |
| 60 mph (96.56 km/h) | 56.21 mph (90.46 km/h) |
| 65 mph (104.61 km/h) | 60.89 mph (98 km/h) |
| 70 mph (112.65 km/h) | 65.58 mph (105.54 km/h) |
| 75 mph (120.7 km/h) | 70.26 mph (113.08 km/h) |
| 80 mph (128.75 km/h) | 74.95 mph (120.62 km/h) |
| 85 mph (136.79 km/h) | 79.63 mph (128.15 km/h) |
| 90 mph (144.84 km/h) | 84.32 mph (135.69 km/h) |
| 95 mph (152.89 km/h) | 89 mph (143.23 km/h) |
| 100 mph (160.93 km/h) | 93.68 mph (150.77 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
