Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/60-20 | 215/45-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.8 (706) | 27.62 (701.5) | -0.18 (-4.5) -0.6% |
| Width inches (mm) | 6.5 (165) | 8.46 (215) | 1.97 (50) 30.3% |
| Circum. inches (mm) | 87.32 (2217.96) | 86.76 (2203.83) | -0.56 (-14.14) -0.6% |
| Sidewall Height inches (mm) | 3.9 (99) | 3.81 (96.75) | -0.09 (-2.25) -2.3% |
| Revolutions per mile (km) | 725.6 (450.86) | 730.25 (453.76) | 4.65 (2.89) 0.6% |
215/45-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.87 mph (31.98 km/h) |
| 25 mph (40.23 km/h) | 24.84 mph (39.98 km/h) |
| 30 mph (48.28 km/h) | 29.81 mph (47.97 km/h) |
| 35 mph (56.33 km/h) | 34.78 mph (55.97 km/h) |
| 40 mph (64.37 km/h) | 39.75 mph (63.96 km/h) |
| 45 mph (72.42 km/h) | 44.71 mph (71.96 km/h) |
| 50 mph (80.47 km/h) | 49.68 mph (79.95 km/h) |
| 55 mph (88.51 km/h) | 54.65 mph (87.95 km/h) |
| 60 mph (96.56 km/h) | 59.62 mph (95.95 km/h) |
| 65 mph (104.61 km/h) | 64.59 mph (103.94 km/h) |
| 70 mph (112.65 km/h) | 69.55 mph (111.94 km/h) |
| 75 mph (120.7 km/h) | 74.52 mph (119.93 km/h) |
| 80 mph (128.75 km/h) | 79.49 mph (127.93 km/h) |
| 85 mph (136.79 km/h) | 84.46 mph (135.92 km/h) |
| 90 mph (144.84 km/h) | 89.43 mph (143.92 km/h) |
| 95 mph (152.89 km/h) | 94.39 mph (151.91 km/h) |
| 100 mph (160.93 km/h) | 99.36 mph (159.91 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1858 | 2159 | 2325 | 2428 | 2538 | 2617 | 2704 | 2807 | 2950 | 3092 | 3250 | 3377 | 3606 | 3859 | 4057 | 4183 | 4254 | 4515 | 4879 | 5670 |
Better Fuel Economy Factory Ratios Increased Power
