Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 155/55-14 | 185/55-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.71 (526.1) | 22.01 (559.1) | 1.3 (33) 6.3% |
| Width inches (mm) | 6.1 (155) | 7.28 (185) | 1.18 (30) 19.4% |
| Circum. inches (mm) | 65.07 (1652.79) | 69.15 (1756.46) | 4.08 (103.67) 6.3% |
| Sidewall Height inches (mm) | 3.36 (85.25) | 4.01 (101.75) | 0.65 (16.5) 19.4% |
| Revolutions per mile (km) | 973.71 (605.04) | 916.24 (569.32) | -57.47 (-35.71) -5.9% |
185/55-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.25 mph (34.21 km/h) |
| 25 mph (40.23 km/h) | 26.57 mph (42.76 km/h) |
| 30 mph (48.28 km/h) | 31.88 mph (51.31 km/h) |
| 35 mph (56.33 km/h) | 37.2 mph (59.86 km/h) |
| 40 mph (64.37 km/h) | 42.51 mph (68.41 km/h) |
| 45 mph (72.42 km/h) | 47.82 mph (76.96 km/h) |
| 50 mph (80.47 km/h) | 53.14 mph (85.51 km/h) |
| 55 mph (88.51 km/h) | 58.45 mph (94.07 km/h) |
| 60 mph (96.56 km/h) | 63.76 mph (102.62 km/h) |
| 65 mph (104.61 km/h) | 69.08 mph (111.17 km/h) |
| 70 mph (112.65 km/h) | 74.39 mph (119.72 km/h) |
| 75 mph (120.7 km/h) | 79.7 mph (128.27 km/h) |
| 80 mph (128.75 km/h) | 85.02 mph (136.82 km/h) |
| 85 mph (136.79 km/h) | 90.33 mph (145.38 km/h) |
| 90 mph (144.84 km/h) | 95.65 mph (153.93 km/h) |
| 95 mph (152.89 km/h) | 100.96 mph (162.48 km/h) |
| 100 mph (160.93 km/h) | 106.27 mph (171.03 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
