Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/85-16 | 205/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.38 (720.9) | 29.72 (754.9) | 1.34 (34) 4.7% |
| Width inches (mm) | 7.28 (185) | 8.07 (205) | 0.79 (20) 10.8% |
| Circum. inches (mm) | 89.16 (2264.77) | 93.37 (2371.59) | 4.21 (106.81) 4.7% |
| Sidewall Height inches (mm) | 6.19 (157.25) | 6.86 (174.25) | 0.67 (17) 10.8% |
| Revolutions per mile (km) | 710.6 (441.54) | 678.59 (421.66) | -32 (-19.89) -4.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.94 mph (33.7 km/h) |
| 25 mph (40.23 km/h) | 26.18 mph (42.13 km/h) |
| 30 mph (48.28 km/h) | 31.41 mph (50.56 km/h) |
| 35 mph (56.33 km/h) | 36.65 mph (58.98 km/h) |
| 40 mph (64.37 km/h) | 41.89 mph (67.41 km/h) |
| 45 mph (72.42 km/h) | 47.12 mph (75.84 km/h) |
| 50 mph (80.47 km/h) | 52.36 mph (84.26 km/h) |
| 55 mph (88.51 km/h) | 57.59 mph (92.69 km/h) |
| 60 mph (96.56 km/h) | 62.83 mph (101.11 km/h) |
| 65 mph (104.61 km/h) | 68.07 mph (109.54 km/h) |
| 70 mph (112.65 km/h) | 73.3 mph (117.97 km/h) |
| 75 mph (120.7 km/h) | 78.54 mph (126.39 km/h) |
| 80 mph (128.75 km/h) | 83.77 mph (134.82 km/h) |
| 85 mph (136.79 km/h) | 89.01 mph (143.25 km/h) |
| 90 mph (144.84 km/h) | 94.24 mph (151.67 km/h) |
| 95 mph (152.89 km/h) | 99.48 mph (160.1 km/h) |
| 100 mph (160.93 km/h) | 104.72 mph (168.52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1727 | 2006 | 2160 | 2256 | 2359 | 2432 | 2513 | 2609 | 2741 | 2873 | 3020 | 3138 | 3351 | 3586 | 3770 | 3887 | 3953 | 4196 | 4534 | 5269 |
Better Fuel Economy Factory Ratios Increased Power
