Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/60-14 | 255/55-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.61 (523.6) | 25.04 (636.1) | 4.43 (112.5) 21.5% |
| Width inches (mm) | 5.51 (140) | 10.04 (255) | 4.53 (115) 82.1% |
| Circum. inches (mm) | 64.76 (1644.94) | 78.68 (1998.37) | 13.91 (353.43) 21.5% |
| Sidewall Height inches (mm) | 3.31 (84) | 5.52 (140.25) | 2.21 (56.25) 67% |
| Revolutions per mile (km) | 978.36 (607.92) | 805.33 (500.41) | -173.03 (-107.52) -17.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.3 mph (39.1 km/h) |
| 25 mph (40.23 km/h) | 30.37 mph (48.88 km/h) |
| 30 mph (48.28 km/h) | 36.45 mph (58.65 km/h) |
| 35 mph (56.33 km/h) | 42.52 mph (68.43 km/h) |
| 40 mph (64.37 km/h) | 48.59 mph (78.21 km/h) |
| 45 mph (72.42 km/h) | 54.67 mph (87.98 km/h) |
| 50 mph (80.47 km/h) | 60.74 mph (97.76 km/h) |
| 55 mph (88.51 km/h) | 66.82 mph (107.53 km/h) |
| 60 mph (96.56 km/h) | 72.89 mph (117.31 km/h) |
| 65 mph (104.61 km/h) | 78.97 mph (127.08 km/h) |
| 70 mph (112.65 km/h) | 85.04 mph (136.86 km/h) |
| 75 mph (120.7 km/h) | 91.11 mph (146.63 km/h) |
| 80 mph (128.75 km/h) | 97.19 mph (156.41 km/h) |
| 85 mph (136.79 km/h) | 103.26 mph (166.19 km/h) |
| 90 mph (144.84 km/h) | 109.34 mph (175.96 km/h) |
| 95 mph (152.89 km/h) | 115.41 mph (185.74 km/h) |
| 100 mph (160.93 km/h) | 121.49 mph (195.51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2049 | 2381 | 2564 | 2677 | 2799 | 2887 | 2983 | 3096 | 3253 | 3410 | 3584 | 3724 | 3977 | 4256 | 4474 | 4613 | 4692 | 4980 | 5381 | 6253 |
Better Fuel Economy Factory Ratios Increased Power
