Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/65-14 | 185/80-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.96 (583.1) | 25.65 (651.6) | 2.7 (68.5) 11.7% |
| Width inches (mm) | 6.89 (175) | 7.28 (185) | 0.39 (10) 5.7% |
| Circum. inches (mm) | 72.12 (1831.86) | 80.59 (2047.06) | 8.47 (215.2) 11.7% |
| Sidewall Height inches (mm) | 4.48 (113.75) | 5.83 (148) | 1.35 (34.25) 30.1% |
| Revolutions per mile (km) | 878.53 (545.89) | 786.17 (488.5) | -92.36 (-57.39) -10.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.35 mph (35.97 km/h) |
| 25 mph (40.23 km/h) | 27.94 mph (44.96 km/h) |
| 30 mph (48.28 km/h) | 33.52 mph (53.95 km/h) |
| 35 mph (56.33 km/h) | 39.11 mph (62.94 km/h) |
| 40 mph (64.37 km/h) | 44.7 mph (71.94 km/h) |
| 45 mph (72.42 km/h) | 50.29 mph (80.93 km/h) |
| 50 mph (80.47 km/h) | 55.87 mph (89.92 km/h) |
| 55 mph (88.51 km/h) | 61.46 mph (98.91 km/h) |
| 60 mph (96.56 km/h) | 67.05 mph (107.9 km/h) |
| 65 mph (104.61 km/h) | 72.64 mph (116.9 km/h) |
| 70 mph (112.65 km/h) | 78.22 mph (125.89 km/h) |
| 75 mph (120.7 km/h) | 83.81 mph (134.88 km/h) |
| 80 mph (128.75 km/h) | 89.4 mph (143.87 km/h) |
| 85 mph (136.79 km/h) | 94.99 mph (152.86 km/h) |
| 90 mph (144.84 km/h) | 100.57 mph (161.86 km/h) |
| 95 mph (152.89 km/h) | 106.16 mph (170.85 km/h) |
| 100 mph (160.93 km/h) | 111.75 mph (179.84 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
