Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/70-17 | 155/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.54 (648.8) | 23.71 (602.3) | -1.83 (-46.5) -7.2% |
| Width inches (mm) | 6.1 (155) | 6.1 (155) | 0 (0) 0% |
| Circum. inches (mm) | 80.25 (2038.27) | 74.5 (1892.18) | -5.75 (-146.08) -7.2% |
| Sidewall Height inches (mm) | 4.27 (108.5) | 3.36 (85.25) | -0.92 (-23.25) -21.4% |
| Revolutions per mile (km) | 789.57 (490.61) | 850.52 (528.49) | 60.96 (37.88) 7.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.57 mph (29.88 km/h) |
| 25 mph (40.23 km/h) | 23.21 mph (37.35 km/h) |
| 30 mph (48.28 km/h) | 27.85 mph (44.82 km/h) |
| 35 mph (56.33 km/h) | 32.49 mph (52.29 km/h) |
| 40 mph (64.37 km/h) | 37.13 mph (59.76 km/h) |
| 45 mph (72.42 km/h) | 41.77 mph (67.23 km/h) |
| 50 mph (80.47 km/h) | 46.42 mph (74.7 km/h) |
| 55 mph (88.51 km/h) | 51.06 mph (82.17 km/h) |
| 60 mph (96.56 km/h) | 55.7 mph (89.64 km/h) |
| 65 mph (104.61 km/h) | 60.34 mph (97.11 km/h) |
| 70 mph (112.65 km/h) | 64.98 mph (104.58 km/h) |
| 75 mph (120.7 km/h) | 69.62 mph (112.05 km/h) |
| 80 mph (128.75 km/h) | 74.27 mph (119.52 km/h) |
| 85 mph (136.79 km/h) | 78.91 mph (126.99 km/h) |
| 90 mph (144.84 km/h) | 83.55 mph (134.46 km/h) |
| 95 mph (152.89 km/h) | 88.19 mph (141.93 km/h) |
| 100 mph (160.93 km/h) | 92.83 mph (149.4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2164 | 2514 | 2708 | 2828 | 2957 | 3049 | 3150 | 3270 | 3435 | 3601 | 3785 | 3933 | 4200 | 4495 | 4725 | 4872 | 4955 | 5259 | 5683 | 6604 |
Better Fuel Economy Factory Ratios Increased Power
