Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-13 | 245/50-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.97 (532.7) | 22.65 (575.2) | 1.67 (42.5) 8% |
| Width inches (mm) | 8.86 (225) | 9.65 (245) | 0.79 (20) 8.9% |
| Circum. inches (mm) | 65.89 (1673.53) | 71.14 (1807.04) | 5.26 (133.52) 8% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 4.82 (122.5) | 0.84 (21.25) 21% |
| Revolutions per mile (km) | 961.65 (597.54) | 890.59 (553.39) | -71.05 (-44.15) -7.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.6 mph (34.75 km/h) |
| 25 mph (40.23 km/h) | 26.99 mph (43.44 km/h) |
| 30 mph (48.28 km/h) | 32.39 mph (52.13 km/h) |
| 35 mph (56.33 km/h) | 37.79 mph (60.82 km/h) |
| 40 mph (64.37 km/h) | 43.19 mph (69.51 km/h) |
| 45 mph (72.42 km/h) | 48.59 mph (78.2 km/h) |
| 50 mph (80.47 km/h) | 53.99 mph (86.89 km/h) |
| 55 mph (88.51 km/h) | 59.39 mph (95.58 km/h) |
| 60 mph (96.56 km/h) | 64.79 mph (104.26 km/h) |
| 65 mph (104.61 km/h) | 70.19 mph (112.95 km/h) |
| 70 mph (112.65 km/h) | 75.58 mph (121.64 km/h) |
| 75 mph (120.7 km/h) | 80.98 mph (130.33 km/h) |
| 80 mph (128.75 km/h) | 86.38 mph (139.02 km/h) |
| 85 mph (136.79 km/h) | 91.78 mph (147.71 km/h) |
| 90 mph (144.84 km/h) | 97.18 mph (156.4 km/h) |
| 95 mph (152.89 km/h) | 102.58 mph (165.09 km/h) |
| 100 mph (160.93 km/h) | 107.98 mph (173.77 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2266 | 2633 | 2835 | 2961 | 3096 | 3192 | 3298 | 3424 | 3597 | 3771 | 3964 | 4118 | 4398 | 4706 | 4947 | 5102 | 5189 | 5507 | 5950 | 6915 |
Better Fuel Economy Factory Ratios Increased Power
