Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/85-14 | 165/80-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.38 (670.1) | 24.39 (619.6) | -1.99 (-50.5) -7.5% |
| Width inches (mm) | 7.28 (185) | 6.5 (165) | -0.79 (-20) -10.8% |
| Circum. inches (mm) | 82.88 (2105.18) | 76.64 (1946.53) | -6.25 (-158.65) -7.5% |
| Sidewall Height inches (mm) | 6.19 (157.25) | 5.2 (132) | -0.99 (-25.25) -16.1% |
| Revolutions per mile (km) | 764.47 (475.02) | 826.78 (513.73) | 62.31 (38.72) 8.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.49 mph (29.76 km/h) |
| 25 mph (40.23 km/h) | 23.12 mph (37.2 km/h) |
| 30 mph (48.28 km/h) | 27.74 mph (44.64 km/h) |
| 35 mph (56.33 km/h) | 32.36 mph (52.08 km/h) |
| 40 mph (64.37 km/h) | 36.99 mph (59.52 km/h) |
| 45 mph (72.42 km/h) | 41.61 mph (66.96 km/h) |
| 50 mph (80.47 km/h) | 46.23 mph (74.4 km/h) |
| 55 mph (88.51 km/h) | 50.86 mph (81.84 km/h) |
| 60 mph (96.56 km/h) | 55.48 mph (89.28 km/h) |
| 65 mph (104.61 km/h) | 60.1 mph (96.72 km/h) |
| 70 mph (112.65 km/h) | 64.72 mph (104.16 km/h) |
| 75 mph (120.7 km/h) | 69.35 mph (111.6 km/h) |
| 80 mph (128.75 km/h) | 73.97 mph (119.05 km/h) |
| 85 mph (136.79 km/h) | 78.59 mph (126.49 km/h) |
| 90 mph (144.84 km/h) | 83.22 mph (133.93 km/h) |
| 95 mph (152.89 km/h) | 87.84 mph (141.37 km/h) |
| 100 mph (160.93 km/h) | 92.46 mph (148.81 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2104 | 2444 | 2632 | 2749 | 2874 | 2963 | 3062 | 3178 | 3340 | 3501 | 3680 | 3823 | 4083 | 4369 | 4593 | 4736 | 4817 | 5112 | 5524 | 6419 |
Better Fuel Economy Factory Ratios Increased Power
