Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/70-12 | 185/55-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.09 (535.8) | 22.01 (559.1) | 0.92 (23.3) 4.3% |
| Width inches (mm) | 6.5 (165) | 7.28 (185) | 0.79 (20) 12.1% |
| Circum. inches (mm) | 66.27 (1683.27) | 69.15 (1756.46) | 2.88 (73.2) 4.3% |
| Sidewall Height inches (mm) | 4.55 (115.5) | 4.01 (101.75) | -0.54 (-13.75) -11.9% |
| Revolutions per mile (km) | 956.08 (594.08) | 916.24 (569.32) | -39.84 (-24.76) -4.2% |
185/55-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.87 mph (33.59 km/h) |
| 25 mph (40.23 km/h) | 26.09 mph (41.98 km/h) |
| 30 mph (48.28 km/h) | 31.3 mph (50.38 km/h) |
| 35 mph (56.33 km/h) | 36.52 mph (58.78 km/h) |
| 40 mph (64.37 km/h) | 41.74 mph (67.17 km/h) |
| 45 mph (72.42 km/h) | 46.96 mph (75.57 km/h) |
| 50 mph (80.47 km/h) | 52.17 mph (83.97 km/h) |
| 55 mph (88.51 km/h) | 57.39 mph (92.36 km/h) |
| 60 mph (96.56 km/h) | 62.61 mph (100.76 km/h) |
| 65 mph (104.61 km/h) | 67.83 mph (109.16 km/h) |
| 70 mph (112.65 km/h) | 73.04 mph (117.55 km/h) |
| 75 mph (120.7 km/h) | 78.26 mph (125.95 km/h) |
| 80 mph (128.75 km/h) | 83.48 mph (134.35 km/h) |
| 85 mph (136.79 km/h) | 88.7 mph (142.74 km/h) |
| 90 mph (144.84 km/h) | 93.91 mph (151.14 km/h) |
| 95 mph (152.89 km/h) | 99.13 mph (159.54 km/h) |
| 100 mph (160.93 km/h) | 104.35 mph (167.93 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2332 | 2709 | 2917 | 3046 | 3185 | 3284 | 3393 | 3522 | 3701 | 3879 | 4078 | 4237 | 4524 | 4842 | 5090 | 5249 | 5338 | 5665 | 6122 | 7114 |
Better Fuel Economy Factory Ratios Increased Power
