Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/50-15 | 245/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.22 (666) | 25.61 (650.5) | -0.61 (-15.5) -2.3% |
| Width inches (mm) | 11.22 (285) | 9.65 (245) | -1.57 (-40) -14% |
| Circum. inches (mm) | 82.37 (2092.3) | 80.46 (2043.61) | -1.92 (-48.69) -2.3% |
| Sidewall Height inches (mm) | 5.61 (142.5) | 5.31 (134.75) | -0.31 (-7.75) -5.4% |
| Revolutions per mile (km) | 769.17 (477.94) | 787.5 (489.33) | 18.33 (11.39) 2.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.53 mph (31.44 km/h) |
| 25 mph (40.23 km/h) | 24.42 mph (39.3 km/h) |
| 30 mph (48.28 km/h) | 29.3 mph (47.16 km/h) |
| 35 mph (56.33 km/h) | 34.19 mph (55.02 km/h) |
| 40 mph (64.37 km/h) | 39.07 mph (62.88 km/h) |
| 45 mph (72.42 km/h) | 43.95 mph (70.74 km/h) |
| 50 mph (80.47 km/h) | 48.84 mph (78.59 km/h) |
| 55 mph (88.51 km/h) | 53.72 mph (86.45 km/h) |
| 60 mph (96.56 km/h) | 58.6 mph (94.31 km/h) |
| 65 mph (104.61 km/h) | 63.49 mph (102.17 km/h) |
| 70 mph (112.65 km/h) | 68.37 mph (110.03 km/h) |
| 75 mph (120.7 km/h) | 73.25 mph (117.89 km/h) |
| 80 mph (128.75 km/h) | 78.14 mph (125.75 km/h) |
| 85 mph (136.79 km/h) | 83.02 mph (133.61 km/h) |
| 90 mph (144.84 km/h) | 87.91 mph (141.47 km/h) |
| 95 mph (152.89 km/h) | 92.79 mph (149.33 km/h) |
| 100 mph (160.93 km/h) | 97.67 mph (157.19 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2004 | 2328 | 2507 | 2618 | 2737 | 2823 | 2917 | 3027 | 3181 | 3334 | 3505 | 3641 | 3889 | 4162 | 4375 | 4511 | 4588 | 4869 | 5262 | 6114 |
Better Fuel Economy Factory Ratios Increased Power
