Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/55-12 | 155/55-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.15 (486.3) | 20.71 (526.1) | 1.57 (39.8) 8.2% |
| Width inches (mm) | 6.5 (165) | 6.1 (155) | -0.39 (-10) -6.1% |
| Circum. inches (mm) | 60.15 (1527.76) | 65.07 (1652.79) | 4.92 (125.04) 8.2% |
| Sidewall Height inches (mm) | 3.57 (90.75) | 3.36 (85.25) | -0.22 (-5.5) -6.1% |
| Revolutions per mile (km) | 1053.4 (654.55) | 973.71 (605.04) | -79.69 (-49.52) -7.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.64 mph (34.82 km/h) |
| 25 mph (40.23 km/h) | 27.05 mph (43.53 km/h) |
| 30 mph (48.28 km/h) | 32.46 mph (52.23 km/h) |
| 35 mph (56.33 km/h) | 37.86 mph (60.94 km/h) |
| 40 mph (64.37 km/h) | 43.27 mph (69.64 km/h) |
| 45 mph (72.42 km/h) | 48.68 mph (78.35 km/h) |
| 50 mph (80.47 km/h) | 54.09 mph (87.05 km/h) |
| 55 mph (88.51 km/h) | 59.5 mph (95.76 km/h) |
| 60 mph (96.56 km/h) | 64.91 mph (104.46 km/h) |
| 65 mph (104.61 km/h) | 70.32 mph (113.17 km/h) |
| 70 mph (112.65 km/h) | 75.73 mph (121.87 km/h) |
| 75 mph (120.7 km/h) | 81.14 mph (130.58 km/h) |
| 80 mph (128.75 km/h) | 86.55 mph (139.28 km/h) |
| 85 mph (136.79 km/h) | 91.96 mph (147.99 km/h) |
| 90 mph (144.84 km/h) | 97.37 mph (156.7 km/h) |
| 95 mph (152.89 km/h) | 102.78 mph (165.4 km/h) |
| 100 mph (160.93 km/h) | 108.18 mph (174.11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
