Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/55-14 | 175/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.71 (526.1) | 21.2 (538.5) | 0.49 (12.4) 2.4% |
| Width inches (mm) | 6.1 (155) | 6.89 (175) | 0.79 (20) 12.9% |
| Circum. inches (mm) | 65.07 (1652.79) | 66.6 (1691.75) | 1.53 (38.96) 2.4% |
| Sidewall Height inches (mm) | 3.36 (85.25) | 3.1 (78.75) | -0.26 (-6.5) -7.6% |
| Revolutions per mile (km) | 973.71 (605.04) | 951.29 (591.1) | -22.42 (-13.93) -2.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.47 mph (32.95 km/h) |
| 25 mph (40.23 km/h) | 25.59 mph (41.18 km/h) |
| 30 mph (48.28 km/h) | 30.71 mph (49.42 km/h) |
| 35 mph (56.33 km/h) | 35.82 mph (57.65 km/h) |
| 40 mph (64.37 km/h) | 40.94 mph (65.89 km/h) |
| 45 mph (72.42 km/h) | 46.06 mph (74.13 km/h) |
| 50 mph (80.47 km/h) | 51.18 mph (82.36 km/h) |
| 55 mph (88.51 km/h) | 56.3 mph (90.6 km/h) |
| 60 mph (96.56 km/h) | 61.41 mph (98.84 km/h) |
| 65 mph (104.61 km/h) | 66.53 mph (107.07 km/h) |
| 70 mph (112.65 km/h) | 71.65 mph (115.31 km/h) |
| 75 mph (120.7 km/h) | 76.77 mph (123.55 km/h) |
| 80 mph (128.75 km/h) | 81.89 mph (131.78 km/h) |
| 85 mph (136.79 km/h) | 87 mph (140.02 km/h) |
| 90 mph (144.84 km/h) | 92.12 mph (148.26 km/h) |
| 95 mph (152.89 km/h) | 97.24 mph (156.49 km/h) |
| 100 mph (160.93 km/h) | 102.36 mph (164.73 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
