215/55R17 vs 225/55R17 Side-by-side tire size comparison with specs and compatibility
This tire swap is within the safe 3% diameter threshold. It should not cause issues with speedometer accuracy, ABS, or traction control systems.
Full Specifications Comparison
| Specification | 215/55R17 | 225/55R17 | Difference |
|---|---|---|---|
| Overall Diameter | 668.3 mm (26.3") | 679.3 mm (26.7") | +11 mm |
| Section Width | 215 mm (8.5") | 225 mm (8.9") | +10 mm |
| Sidewall Height | 118.3 mm | 123.8 mm | +5.5 mm |
| Circumference | 2099.5 mm | 2134.1 mm | +34.6 mm |
| Revolutions/Mile | 767 | 754 | -13 |
| Aspect Ratio | 55% | 55% | 0% |
| Rim Diameter | 17" | 17" | 0" |
Key Impact Summary
Speedometer Correction Table
When switching from 215/55R17 to 225/55R17, your speedometer will under-read. Here is the correction at common speeds:
| Speedometer Shows | Actual Speed (mph) | Difference |
|---|---|---|
| 30 mph | 30.5 mph | +0.5 mph |
| 40 mph | 40.7 mph | +0.7 mph |
| 50 mph | 50.8 mph | +0.8 mph |
| 60 mph | 61 mph | +1 mph |
| 70 mph | 71.2 mph | +1.2 mph |
| 80 mph | 81.3 mph | +1.3 mph |
| 90 mph | 91.5 mph | +1.5 mph |
| 100 mph | 101.6 mph | +1.6 mph |
| 110 mph | 111.8 mph | +1.8 mph |
| 120 mph | 122 mph | +2 mph |
What This Swap Means
Wider tires (225/55R17): The 10mm wider contact patch provides better grip in dry conditions and improved cornering stability. However, wider tires increase rolling resistance slightly, which may affect fuel economy by 1-2%. They are also more susceptible to hydroplaning in wet conditions.
Taller sidewall: The 5.5mm increase in sidewall height provides a more comfortable ride by absorbing more road imperfections. Taller sidewalls also offer better protection against pothole damage to wheels. The trade-off is slightly less responsive steering feel.
Ground clearance: Increases by 5.5mm, providing slightly better approach angles for off-road driving and speed bump clearance.