Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/85-16 | 190/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.71 (703.9) | 28.72 (729.4) | 1 (25.5) 3.6% |
| Width inches (mm) | 6.89 (175) | 7.48 (190) | 0.59 (15) 8.6% |
| Circum. inches (mm) | 87.06 (2211.37) | 90.22 (2291.48) | 3.15 (80.11) 3.6% |
| Sidewall Height inches (mm) | 5.86 (148.75) | 6.36 (161.5) | 0.5 (12.75) 8.6% |
| Revolutions per mile (km) | 727.76 (452.21) | 702.32 (436.4) | -25.44 (-15.81) -3.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.72 mph (33.35 km/h) |
| 25 mph (40.23 km/h) | 25.91 mph (41.69 km/h) |
| 30 mph (48.28 km/h) | 31.09 mph (50.03 km/h) |
| 35 mph (56.33 km/h) | 36.27 mph (58.37 km/h) |
| 40 mph (64.37 km/h) | 41.45 mph (66.71 km/h) |
| 45 mph (72.42 km/h) | 46.63 mph (75.04 km/h) |
| 50 mph (80.47 km/h) | 51.81 mph (83.38 km/h) |
| 55 mph (88.51 km/h) | 56.99 mph (91.72 km/h) |
| 60 mph (96.56 km/h) | 62.17 mph (100.06 km/h) |
| 65 mph (104.61 km/h) | 67.35 mph (108.4 km/h) |
| 70 mph (112.65 km/h) | 72.54 mph (116.74 km/h) |
| 75 mph (120.7 km/h) | 77.72 mph (125.07 km/h) |
| 80 mph (128.75 km/h) | 82.9 mph (133.41 km/h) |
| 85 mph (136.79 km/h) | 88.08 mph (141.75 km/h) |
| 90 mph (144.84 km/h) | 93.26 mph (150.09 km/h) |
| 95 mph (152.89 km/h) | 98.44 mph (158.43 km/h) |
| 100 mph (160.93 km/h) | 103.62 mph (166.76 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 | 2837 | 2974 | 3126 | 3247 | 3468 | 3711 | 3902 | 4023 | 4092 | 4343 | 4693 | 5453 |
Better Fuel Economy Factory Ratios Increased Power
