Comparison
325/55 R16 vs 215/40 R17
Compared to 325/55 R16, 215/40 R17 is 160.1 mm shorter and changes the speedometer reading by -20.96%.
Current Tire
325/55R16
New Tire
215/40R17
325/55 R16
215/40 R17
Ground line · scaled comparison
Not Recommended
Over 5% — speedometer & ABS may misread
Diameter change
-160.1 mm
-20.96%
Speedometer at 100
79.0 km/h
-20.96% error
Ground clearance
-80.1 mm
ride height delta
Sidewall change
-92.8 mm
revs/km: 527.2
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/compare/325-55-r16-vs-215-40-r17Detailed comparison
| Metric | 325/55 R16 | 215/40 R17 | Difference |
|---|---|---|---|
| Overall diameter | 763.9 mm | 603.8 mm | -160.1 mm (-20.96%) |
| Sidewall height | 178.8 mm | 86.0 mm | -92.8 mm |
| Circumference | 2.400 m | 1.897 m | -503.0 mm |
| Revs / km | 416.7 | 527.2 | +110.5 |
| Ground clearance | reference | -80.1 mm | -80.1 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 79.0 km/h | -20.96 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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325/55 R16
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215/40 R17