Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/55-13 | 165/40-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.15 (511.7) | 18.2 (462.2) | -1.95 (-49.5) -9.7% |
| Width inches (mm) | 6.5 (165) | 6.5 (165) | 0 (0) 0% |
| Circum. inches (mm) | 63.29 (1607.55) | 57.17 (1452.04) | -6.12 (-155.51) -9.7% |
| Sidewall Height inches (mm) | 3.57 (90.75) | 2.6 (66) | -0.97 (-24.75) -27.3% |
| Revolutions per mile (km) | 1001.11 (622.06) | 1108.33 (688.68) | 107.22 (66.62) 10.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.07 mph (29.07 km/h) |
| 25 mph (40.23 km/h) | 22.58 mph (36.34 km/h) |
| 30 mph (48.28 km/h) | 27.1 mph (43.61 km/h) |
| 35 mph (56.33 km/h) | 31.61 mph (50.88 km/h) |
| 40 mph (64.37 km/h) | 36.13 mph (58.15 km/h) |
| 45 mph (72.42 km/h) | 40.65 mph (65.41 km/h) |
| 50 mph (80.47 km/h) | 45.16 mph (72.68 km/h) |
| 55 mph (88.51 km/h) | 49.68 mph (79.95 km/h) |
| 60 mph (96.56 km/h) | 54.2 mph (87.22 km/h) |
| 65 mph (104.61 km/h) | 58.71 mph (94.49 km/h) |
| 70 mph (112.65 km/h) | 63.23 mph (101.76 km/h) |
| 75 mph (120.7 km/h) | 67.74 mph (109.02 km/h) |
| 80 mph (128.75 km/h) | 72.26 mph (116.29 km/h) |
| 85 mph (136.79 km/h) | 76.78 mph (123.56 km/h) |
| 90 mph (144.84 km/h) | 81.29 mph (130.83 km/h) |
| 95 mph (152.89 km/h) | 85.81 mph (138.1 km/h) |
| 100 mph (160.93 km/h) | 90.33 mph (145.37 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
