Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/45-15 | 255/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.04 (610.5) | 25.04 (636) | 1 (25.5) 4.2% |
| Width inches (mm) | 10.04 (255) | 10.04 (255) | 0 (0) 0% |
| Circum. inches (mm) | 75.51 (1917.94) | 78.66 (1998.05) | 3.15 (80.11) 4.2% |
| Sidewall Height inches (mm) | 4.52 (114.75) | 5.02 (127.5) | 0.5 (12.75) 11.1% |
| Revolutions per mile (km) | 839.1 (521.39) | 805.46 (500.49) | -33.64 (-20.9) -4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.84 mph (33.53 km/h) |
| 25 mph (40.23 km/h) | 26.04 mph (41.91 km/h) |
| 30 mph (48.28 km/h) | 31.25 mph (50.3 km/h) |
| 35 mph (56.33 km/h) | 36.46 mph (58.68 km/h) |
| 40 mph (64.37 km/h) | 41.67 mph (67.06 km/h) |
| 45 mph (72.42 km/h) | 46.88 mph (75.45 km/h) |
| 50 mph (80.47 km/h) | 52.09 mph (83.83 km/h) |
| 55 mph (88.51 km/h) | 57.3 mph (92.21 km/h) |
| 60 mph (96.56 km/h) | 62.51 mph (100.59 km/h) |
| 65 mph (104.61 km/h) | 67.71 mph (108.98 km/h) |
| 70 mph (112.65 km/h) | 72.92 mph (117.36 km/h) |
| 75 mph (120.7 km/h) | 78.13 mph (125.74 km/h) |
| 80 mph (128.75 km/h) | 83.34 mph (134.13 km/h) |
| 85 mph (136.79 km/h) | 88.55 mph (142.51 km/h) |
| 90 mph (144.84 km/h) | 93.76 mph (150.89 km/h) |
| 95 mph (152.89 km/h) | 98.97 mph (159.27 km/h) |
| 100 mph (160.93 km/h) | 104.18 mph (167.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2050 | 2381 | 2564 | 2678 | 2800 | 2887 | 2983 | 3096 | 3253 | 3410 | 3585 | 3724 | 3977 | 4256 | 4475 | 4614 | 4693 | 4980 | 5382 | 6254 |
Better Fuel Economy Factory Ratios Increased Power
