Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/65-18 | 175/65-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.47 (697.7) | 22.96 (583.1) | -4.51 (-114.6) -16.4% |
| Width inches (mm) | 7.28 (185) | 6.89 (175) | -0.39 (-10) -5.4% |
| Circum. inches (mm) | 86.29 (2191.89) | 72.12 (1831.86) | -14.17 (-360.03) -16.4% |
| Sidewall Height inches (mm) | 4.73 (120.25) | 4.48 (113.75) | -0.26 (-6.5) -5.4% |
| Revolutions per mile (km) | 734.23 (456.23) | 878.53 (545.89) | 144.3 (89.66) 19.7% |
175/65-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.71 mph (26.9 km/h) |
| 25 mph (40.23 km/h) | 20.89 mph (33.63 km/h) |
| 30 mph (48.28 km/h) | 25.07 mph (40.35 km/h) |
| 35 mph (56.33 km/h) | 29.25 mph (47.08 km/h) |
| 40 mph (64.37 km/h) | 33.43 mph (53.8 km/h) |
| 45 mph (72.42 km/h) | 37.61 mph (60.53 km/h) |
| 50 mph (80.47 km/h) | 41.79 mph (67.25 km/h) |
| 55 mph (88.51 km/h) | 45.97 mph (73.98 km/h) |
| 60 mph (96.56 km/h) | 50.14 mph (80.7 km/h) |
| 65 mph (104.61 km/h) | 54.32 mph (87.43 km/h) |
| 70 mph (112.65 km/h) | 58.5 mph (94.15 km/h) |
| 75 mph (120.7 km/h) | 62.68 mph (100.88 km/h) |
| 80 mph (128.75 km/h) | 66.86 mph (107.6 km/h) |
| 85 mph (136.79 km/h) | 71.04 mph (114.33 km/h) |
| 90 mph (144.84 km/h) | 75.22 mph (121.05 km/h) |
| 95 mph (152.89 km/h) | 79.4 mph (127.78 km/h) |
| 100 mph (160.93 km/h) | 83.57 mph (134.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2236 | 2597 | 2797 | 2921 | 3054 | 3149 | 3254 | 3377 | 3549 | 3720 | 3910 | 4062 | 4338 | 4643 | 4880 | 5033 | 5118 | 5432 | 5870 | 6821 |
Better Fuel Economy Factory Ratios Increased Power
