Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 115/70-16 | 175/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.34 (567.4) | 22.58 (573.5) | 0.24 (6.1) 1.1% |
| Width inches (mm) | 4.53 (115) | 6.89 (175) | 2.36 (60) 52.2% |
| Circum. inches (mm) | 70.18 (1782.54) | 70.93 (1801.7) | 0.75 (19.16) 1.1% |
| Sidewall Height inches (mm) | 3.17 (80.5) | 3.79 (96.25) | 0.62 (15.75) 19.6% |
| Revolutions per mile (km) | 902.84 (561) | 893.23 (555.03) | -9.6 (-5.97) -1.1% |
175/55-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.22 mph (32.53 km/h) |
| 25 mph (40.23 km/h) | 25.27 mph (40.67 km/h) |
| 30 mph (48.28 km/h) | 30.32 mph (48.8 km/h) |
| 35 mph (56.33 km/h) | 35.38 mph (56.93 km/h) |
| 40 mph (64.37 km/h) | 40.43 mph (65.07 km/h) |
| 45 mph (72.42 km/h) | 45.48 mph (73.2 km/h) |
| 50 mph (80.47 km/h) | 50.54 mph (81.33 km/h) |
| 55 mph (88.51 km/h) | 55.59 mph (89.47 km/h) |
| 60 mph (96.56 km/h) | 60.65 mph (97.6 km/h) |
| 65 mph (104.61 km/h) | 65.7 mph (105.73 km/h) |
| 70 mph (112.65 km/h) | 70.75 mph (113.87 km/h) |
| 75 mph (120.7 km/h) | 75.81 mph (122 km/h) |
| 80 mph (128.75 km/h) | 80.86 mph (130.13 km/h) |
| 85 mph (136.79 km/h) | 85.91 mph (138.27 km/h) |
| 90 mph (144.84 km/h) | 90.97 mph (146.4 km/h) |
| 95 mph (152.89 km/h) | 96.02 mph (154.53 km/h) |
| 100 mph (160.93 km/h) | 101.08 mph (162.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2273 | 2641 | 2844 | 2970 | 3105 | 3202 | 3308 | 3434 | 3608 | 3782 | 3976 | 4130 | 4411 | 4720 | 4962 | 5117 | 5204 | 5523 | 5968 | 6935 |
Better Fuel Economy Factory Ratios Increased Power
