Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/70-17 | 215/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.99 (634.8) | 24.62 (625.3) | -0.37 (-9.5) -1.5% |
| Width inches (mm) | 5.71 (145) | 8.46 (215) | 2.76 (70) 48.3% |
| Circum. inches (mm) | 78.52 (1994.28) | 77.34 (1964.44) | -1.18 (-29.85) -1.5% |
| Sidewall Height inches (mm) | 4 (101.5) | 3.81 (96.75) | -0.19 (-4.75) -4.7% |
| Revolutions per mile (km) | 806.98 (501.43) | 819.24 (509.05) | 12.26 (7.62) 1.5% |
215/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.7 mph (31.71 km/h) |
| 25 mph (40.23 km/h) | 24.63 mph (39.63 km/h) |
| 30 mph (48.28 km/h) | 29.55 mph (47.56 km/h) |
| 35 mph (56.33 km/h) | 34.48 mph (55.48 km/h) |
| 40 mph (64.37 km/h) | 39.4 mph (63.41 km/h) |
| 45 mph (72.42 km/h) | 44.33 mph (71.34 km/h) |
| 50 mph (80.47 km/h) | 49.25 mph (79.26 km/h) |
| 55 mph (88.51 km/h) | 54.18 mph (87.19 km/h) |
| 60 mph (96.56 km/h) | 59.1 mph (95.12 km/h) |
| 65 mph (104.61 km/h) | 64.03 mph (103.04 km/h) |
| 70 mph (112.65 km/h) | 68.95 mph (110.97 km/h) |
| 75 mph (120.7 km/h) | 73.88 mph (118.89 km/h) |
| 80 mph (128.75 km/h) | 78.8 mph (126.82 km/h) |
| 85 mph (136.79 km/h) | 83.73 mph (134.75 km/h) |
| 90 mph (144.84 km/h) | 88.65 mph (142.67 km/h) |
| 95 mph (152.89 km/h) | 93.58 mph (150.6 km/h) |
| 100 mph (160.93 km/h) | 98.5 mph (158.53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2085 | 2422 | 2608 | 2724 | 2848 | 2936 | 3034 | 3149 | 3309 | 3469 | 3646 | 3788 | 4045 | 4329 | 4551 | 4693 | 4773 | 5066 | 5474 | 6361 |
Better Fuel Economy Factory Ratios Increased Power
