Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/55-17 | 175/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.58 (624.3) | 25.96 (659.3) | 1.38 (35) 5.6% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 77.22 (1961.3) | 81.55 (2071.25) | 4.33 (109.96) 5.6% |
| Sidewall Height inches (mm) | 3.79 (96.25) | 4.48 (113.75) | 0.69 (17.5) 18.2% |
| Revolutions per mile (km) | 820.55 (509.87) | 776.99 (482.8) | -43.56 (-27.07) -5.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.12 mph (33.99 km/h) |
| 25 mph (40.23 km/h) | 26.4 mph (42.49 km/h) |
| 30 mph (48.28 km/h) | 31.68 mph (50.99 km/h) |
| 35 mph (56.33 km/h) | 36.96 mph (59.49 km/h) |
| 40 mph (64.37 km/h) | 42.24 mph (67.98 km/h) |
| 45 mph (72.42 km/h) | 47.52 mph (76.48 km/h) |
| 50 mph (80.47 km/h) | 52.8 mph (84.98 km/h) |
| 55 mph (88.51 km/h) | 58.08 mph (93.48 km/h) |
| 60 mph (96.56 km/h) | 63.36 mph (101.97 km/h) |
| 65 mph (104.61 km/h) | 68.64 mph (110.47 km/h) |
| 70 mph (112.65 km/h) | 73.92 mph (118.97 km/h) |
| 75 mph (120.7 km/h) | 79.2 mph (127.47 km/h) |
| 80 mph (128.75 km/h) | 84.49 mph (135.97 km/h) |
| 85 mph (136.79 km/h) | 89.77 mph (144.46 km/h) |
| 90 mph (144.84 km/h) | 95.05 mph (152.96 km/h) |
| 95 mph (152.89 km/h) | 100.33 mph (161.46 km/h) |
| 100 mph (160.93 km/h) | 105.61 mph (169.96 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1977 | 2297 | 2474 | 2583 | 2701 | 2785 | 2878 | 2987 | 3138 | 3290 | 3458 | 3593 | 3837 | 4106 | 4316 | 4451 | 4527 | 4804 | 5191 | 6033 |
Better Fuel Economy Factory Ratios Increased Power
