Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/45-13 | 190/70-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.97 (532.7) | 23.47 (596.2) | 2.5 (63.5) 11.9% |
| Width inches (mm) | 8.86 (225) | 7.48 (190) | -1.38 (-35) -15.6% |
| Circum. inches (mm) | 65.89 (1673.53) | 73.74 (1873.02) | 7.85 (199.49) 11.9% |
| Sidewall Height inches (mm) | 3.99 (101.25) | 5.24 (133) | 1.25 (31.75) 31.4% |
| Revolutions per mile (km) | 961.65 (597.54) | 859.23 (533.9) | -102.42 (-63.64) -10.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.38 mph (36.02 km/h) |
| 25 mph (40.23 km/h) | 27.98 mph (45.03 km/h) |
| 30 mph (48.28 km/h) | 33.58 mph (54.04 km/h) |
| 35 mph (56.33 km/h) | 39.17 mph (63.04 km/h) |
| 40 mph (64.37 km/h) | 44.77 mph (72.05 km/h) |
| 45 mph (72.42 km/h) | 50.36 mph (81.05 km/h) |
| 50 mph (80.47 km/h) | 55.96 mph (90.06 km/h) |
| 55 mph (88.51 km/h) | 61.56 mph (99.07 km/h) |
| 60 mph (96.56 km/h) | 67.15 mph (108.07 km/h) |
| 65 mph (104.61 km/h) | 72.75 mph (117.08 km/h) |
| 70 mph (112.65 km/h) | 78.34 mph (126.08 km/h) |
| 75 mph (120.7 km/h) | 83.94 mph (135.09 km/h) |
| 80 mph (128.75 km/h) | 89.54 mph (144.1 km/h) |
| 85 mph (136.79 km/h) | 95.13 mph (153.1 km/h) |
| 90 mph (144.84 km/h) | 100.73 mph (162.11 km/h) |
| 95 mph (152.89 km/h) | 106.32 mph (171.11 km/h) |
| 100 mph (160.93 km/h) | 111.92 mph (180.12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2187 | 2540 | 2736 | 2856 | 2987 | 3080 | 3182 | 3303 | 3471 | 3638 | 3824 | 3973 | 4243 | 4541 | 4773 | 4922 | 5006 | 5313 | 5741 | 6671 |
Better Fuel Economy Factory Ratios Increased Power
