Comparison
225/55 R16 vs 215/40 R17
Compared to 225/55 R16, 215/40 R17 is 50.1 mm shorter and changes the speedometer reading by -7.66%.
Current Tire
225/55R16
New Tire
215/40R17
225/55 R16
215/40 R17
Ground line · scaled comparison
Not Recommended
Over 5% — speedometer & ABS may misread
Diameter change
-50.1 mm
-7.66%
Speedometer at 100
92.3 km/h
-7.66% error
Ground clearance
-25.1 mm
ride height delta
Sidewall change
-37.8 mm
revs/km: 527.2
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/compare/225-55-r16-vs-215-40-r17Detailed comparison
| Metric | 225/55 R16 | 215/40 R17 | Difference |
|---|---|---|---|
| Overall diameter | 653.9 mm | 603.8 mm | -50.1 mm (-7.66%) |
| Sidewall height | 123.8 mm | 86.0 mm | -37.8 mm |
| Circumference | 2.054 m | 1.897 m | -157.4 mm |
| Revs / km | 486.8 | 527.2 | +40.4 |
| Ground clearance | reference | -25.1 mm | -25.1 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 92.3 km/h | -7.66 km/h |
Verdict: danger
Over 5% diameter difference — likely to affect speedometer accuracy, ABS calibration and gearing. Not recommended without professional review.
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225/55 R16
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215/40 R17