Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/65-15 | 215/45-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.47 (621.5) | 24.62 (625.3) | 0.15 (3.8) 0.6% |
| Width inches (mm) | 7.28 (185) | 8.46 (215) | 1.18 (30) 16.2% |
| Circum. inches (mm) | 76.87 (1952.5) | 77.34 (1964.44) | 0.47 (11.94) 0.6% |
| Sidewall Height inches (mm) | 4.73 (120.25) | 3.81 (96.75) | -0.93 (-23.5) -19.5% |
| Revolutions per mile (km) | 824.25 (512.16) | 819.24 (509.05) | -5.01 (-3.11) -0.6% |
215/45-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.12 mph (32.38 km/h) |
| 25 mph (40.23 km/h) | 25.15 mph (40.48 km/h) |
| 30 mph (48.28 km/h) | 30.18 mph (48.58 km/h) |
| 35 mph (56.33 km/h) | 35.21 mph (56.67 km/h) |
| 40 mph (64.37 km/h) | 40.24 mph (64.77 km/h) |
| 45 mph (72.42 km/h) | 45.28 mph (72.86 km/h) |
| 50 mph (80.47 km/h) | 50.31 mph (80.96 km/h) |
| 55 mph (88.51 km/h) | 55.34 mph (89.06 km/h) |
| 60 mph (96.56 km/h) | 60.37 mph (97.15 km/h) |
| 65 mph (104.61 km/h) | 65.4 mph (105.25 km/h) |
| 70 mph (112.65 km/h) | 70.43 mph (113.34 km/h) |
| 75 mph (120.7 km/h) | 75.46 mph (121.44 km/h) |
| 80 mph (128.75 km/h) | 80.49 mph (129.53 km/h) |
| 85 mph (136.79 km/h) | 85.52 mph (137.63 km/h) |
| 90 mph (144.84 km/h) | 90.55 mph (145.73 km/h) |
| 95 mph (152.89 km/h) | 95.58 mph (153.82 km/h) |
| 100 mph (160.93 km/h) | 100.61 mph (161.92 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
