Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/80-14 | 185/80-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.02 (635.6) | 25.65 (651.6) | 0.63 (16) 2.5% |
| Width inches (mm) | 6.89 (175) | 7.28 (185) | 0.39 (10) 5.7% |
| Circum. inches (mm) | 78.61 (1996.8) | 80.59 (2047.06) | 1.98 (50.27) 2.5% |
| Sidewall Height inches (mm) | 5.51 (140) | 5.83 (148) | 0.31 (8) 5.7% |
| Revolutions per mile (km) | 805.96 (500.8) | 786.17 (488.5) | -19.79 (-12.3) -2.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.5 mph (33 km/h) |
| 25 mph (40.23 km/h) | 25.63 mph (41.25 km/h) |
| 30 mph (48.28 km/h) | 30.76 mph (49.5 km/h) |
| 35 mph (56.33 km/h) | 35.88 mph (57.75 km/h) |
| 40 mph (64.37 km/h) | 41.01 mph (65.99 km/h) |
| 45 mph (72.42 km/h) | 46.13 mph (74.24 km/h) |
| 50 mph (80.47 km/h) | 51.26 mph (82.49 km/h) |
| 55 mph (88.51 km/h) | 56.38 mph (90.74 km/h) |
| 60 mph (96.56 km/h) | 61.51 mph (98.99 km/h) |
| 65 mph (104.61 km/h) | 66.64 mph (107.24 km/h) |
| 70 mph (112.65 km/h) | 71.76 mph (115.49 km/h) |
| 75 mph (120.7 km/h) | 76.89 mph (123.74 km/h) |
| 80 mph (128.75 km/h) | 82.01 mph (131.99 km/h) |
| 85 mph (136.79 km/h) | 87.14 mph (140.24 km/h) |
| 90 mph (144.84 km/h) | 92.27 mph (148.49 km/h) |
| 95 mph (152.89 km/h) | 97.39 mph (156.74 km/h) |
| 100 mph (160.93 km/h) | 102.52 mph (164.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2001 | 2324 | 2503 | 2614 | 2733 | 2818 | 2912 | 3022 | 3176 | 3329 | 3499 | 3635 | 3882 | 4155 | 4367 | 4504 | 4580 | 4861 | 5253 | 6104 |
Better Fuel Economy Factory Ratios Increased Power
