Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/80-15 | 205/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.91 (709) | 28.72 (729.5) | 0.81 (20.5) 2.9% |
| Width inches (mm) | 8.07 (205) | 8.07 (205) | 0 (0) 0% |
| Circum. inches (mm) | 87.69 (2227.39) | 90.23 (2291.79) | 2.54 (64.4) 2.9% |
| Sidewall Height inches (mm) | 6.46 (164) | 6.86 (174.25) | 0.4 (10.25) 6.3% |
| Revolutions per mile (km) | 722.52 (448.96) | 702.22 (436.34) | -20.3 (-12.62) -2.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.58 mph (33.12 km/h) |
| 25 mph (40.23 km/h) | 25.72 mph (41.4 km/h) |
| 30 mph (48.28 km/h) | 30.87 mph (49.68 km/h) |
| 35 mph (56.33 km/h) | 36.01 mph (57.96 km/h) |
| 40 mph (64.37 km/h) | 41.16 mph (66.24 km/h) |
| 45 mph (72.42 km/h) | 46.3 mph (74.51 km/h) |
| 50 mph (80.47 km/h) | 51.45 mph (82.79 km/h) |
| 55 mph (88.51 km/h) | 56.59 mph (91.07 km/h) |
| 60 mph (96.56 km/h) | 61.73 mph (99.35 km/h) |
| 65 mph (104.61 km/h) | 66.88 mph (107.63 km/h) |
| 70 mph (112.65 km/h) | 72.02 mph (115.91 km/h) |
| 75 mph (120.7 km/h) | 77.17 mph (124.19 km/h) |
| 80 mph (128.75 km/h) | 82.31 mph (132.47 km/h) |
| 85 mph (136.79 km/h) | 87.46 mph (140.75 km/h) |
| 90 mph (144.84 km/h) | 92.6 mph (149.03 km/h) |
| 95 mph (152.89 km/h) | 97.75 mph (157.31 km/h) |
| 100 mph (160.93 km/h) | 102.89 mph (165.59 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1787 | 2076 | 2236 | 2335 | 2441 | 2517 | 2601 | 2700 | 2836 | 2973 | 3125 | 3247 | 3468 | 3711 | 3901 | 4023 | 4091 | 4342 | 4692 | 5452 |
Better Fuel Economy Factory Ratios Increased Power
