Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-14 | 225/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.34 (643.6) | 23.86 (606) | -1.48 (-37.6) -5.8% |
| Width inches (mm) | 7.09 (180) | 8.86 (225) | 1.77 (45) 25% |
| Circum. inches (mm) | 79.6 (2021.93) | 74.95 (1903.81) | -4.65 (-118.12) -5.8% |
| Sidewall Height inches (mm) | 5.67 (144) | 4.43 (112.5) | -1.24 (-31.5) -21.9% |
| Revolutions per mile (km) | 795.94 (494.58) | 845.33 (525.26) | 49.39 (30.69) 6.2% |
225/50-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.83 mph (30.31 km/h) |
| 25 mph (40.23 km/h) | 23.54 mph (37.88 km/h) |
| 30 mph (48.28 km/h) | 28.25 mph (45.46 km/h) |
| 35 mph (56.33 km/h) | 32.96 mph (53.04 km/h) |
| 40 mph (64.37 km/h) | 37.66 mph (60.61 km/h) |
| 45 mph (72.42 km/h) | 42.37 mph (68.19 km/h) |
| 50 mph (80.47 km/h) | 47.08 mph (75.77 km/h) |
| 55 mph (88.51 km/h) | 51.79 mph (83.34 km/h) |
| 60 mph (96.56 km/h) | 56.49 mph (90.92 km/h) |
| 65 mph (104.61 km/h) | 61.2 mph (98.5 km/h) |
| 70 mph (112.65 km/h) | 65.91 mph (106.07 km/h) |
| 75 mph (120.7 km/h) | 70.62 mph (113.65 km/h) |
| 80 mph (128.75 km/h) | 75.33 mph (121.23 km/h) |
| 85 mph (136.79 km/h) | 80.03 mph (128.8 km/h) |
| 90 mph (144.84 km/h) | 84.74 mph (136.38 km/h) |
| 95 mph (152.89 km/h) | 89.45 mph (143.96 km/h) |
| 100 mph (160.93 km/h) | 94.16 mph (151.53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2151 | 2499 | 2691 | 2810 | 2938 | 3030 | 3131 | 3250 | 3414 | 3579 | 3762 | 3909 | 4174 | 4467 | 4696 | 4842 | 4925 | 5227 | 5648 | 6563 |
Better Fuel Economy Factory Ratios Increased Power
