Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/70-17 | 215/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.99 (634.8) | 26.31 (668.3) | 1.32 (33.5) 5.3% |
| Width inches (mm) | 5.71 (145) | 8.46 (215) | 2.76 (70) 48.3% |
| Circum. inches (mm) | 78.52 (1994.28) | 82.66 (2099.53) | 4.14 (105.24) 5.3% |
| Sidewall Height inches (mm) | 4 (101.5) | 4.66 (118.25) | 0.66 (16.75) 16.5% |
| Revolutions per mile (km) | 806.98 (501.43) | 766.53 (476.3) | -40.45 (-25.14) -5% |
215/55-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.06 mph (33.89 km/h) |
| 25 mph (40.23 km/h) | 26.32 mph (42.36 km/h) |
| 30 mph (48.28 km/h) | 31.58 mph (50.83 km/h) |
| 35 mph (56.33 km/h) | 36.85 mph (59.3 km/h) |
| 40 mph (64.37 km/h) | 42.11 mph (67.77 km/h) |
| 45 mph (72.42 km/h) | 47.37 mph (76.24 km/h) |
| 50 mph (80.47 km/h) | 52.64 mph (84.71 km/h) |
| 55 mph (88.51 km/h) | 57.9 mph (93.19 km/h) |
| 60 mph (96.56 km/h) | 63.17 mph (101.66 km/h) |
| 65 mph (104.61 km/h) | 68.43 mph (110.13 km/h) |
| 70 mph (112.65 km/h) | 73.69 mph (118.6 km/h) |
| 75 mph (120.7 km/h) | 78.96 mph (127.07 km/h) |
| 80 mph (128.75 km/h) | 84.22 mph (135.54 km/h) |
| 85 mph (136.79 km/h) | 89.49 mph (144.01 km/h) |
| 90 mph (144.84 km/h) | 94.75 mph (152.48 km/h) |
| 95 mph (152.89 km/h) | 100.01 mph (160.96 km/h) |
| 100 mph (160.93 km/h) | 105.28 mph (169.43 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1951 | 2266 | 2440 | 2548 | 2665 | 2748 | 2839 | 2947 | 3096 | 3246 | 3412 | 3544 | 3785 | 4051 | 4258 | 4391 | 4466 | 4740 | 5122 | 5952 |
Better Fuel Economy Factory Ratios Increased Power
