Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/55-15 | 205/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.01 (584.5) | 25.88 (657.3) | 2.87 (72.8) 12.5% |
| Width inches (mm) | 7.28 (185) | 8.07 (205) | 0.79 (20) 10.8% |
| Circum. inches (mm) | 72.29 (1836.26) | 81.3 (2064.97) | 9 (228.71) 12.5% |
| Sidewall Height inches (mm) | 4.01 (101.75) | 4.44 (112.75) | 0.43 (11) 10.8% |
| Revolutions per mile (km) | 876.42 (544.58) | 779.36 (484.27) | -97.07 (-60.32) -11.1% |
205/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.49 mph (36.2 km/h) |
| 25 mph (40.23 km/h) | 28.11 mph (45.24 km/h) |
| 30 mph (48.28 km/h) | 33.74 mph (54.29 km/h) |
| 35 mph (56.33 km/h) | 39.36 mph (63.34 km/h) |
| 40 mph (64.37 km/h) | 44.98 mph (72.39 km/h) |
| 45 mph (72.42 km/h) | 50.6 mph (81.44 km/h) |
| 50 mph (80.47 km/h) | 56.23 mph (90.49 km/h) |
| 55 mph (88.51 km/h) | 61.85 mph (99.54 km/h) |
| 60 mph (96.56 km/h) | 67.47 mph (108.59 km/h) |
| 65 mph (104.61 km/h) | 73.1 mph (117.64 km/h) |
| 70 mph (112.65 km/h) | 78.72 mph (126.69 km/h) |
| 75 mph (120.7 km/h) | 84.34 mph (135.73 km/h) |
| 80 mph (128.75 km/h) | 89.96 mph (144.78 km/h) |
| 85 mph (136.79 km/h) | 95.59 mph (153.83 km/h) |
| 90 mph (144.84 km/h) | 101.21 mph (162.88 km/h) |
| 95 mph (152.89 km/h) | 106.83 mph (171.93 km/h) |
| 100 mph (160.93 km/h) | 112.46 mph (180.98 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1983 | 2304 | 2481 | 2591 | 2709 | 2794 | 2886 | 2996 | 3148 | 3300 | 3469 | 3604 | 3848 | 4119 | 4330 | 4465 | 4541 | 4819 | 5207 | 6051 |
Better Fuel Economy Factory Ratios Increased Power
