Comparison
245/55 R16 vs 215/45 R17
Compared to 245/55 R16, 215/45 R17 is 50.6 mm shorter and changes the speedometer reading by -7.49%.
Current Tire
245/55R16
New Tire
215/45R17
245/55 R16
215/45 R17
Ground line · scaled comparison
Not Recommended
Over 5% — speedometer & ABS may misread
Diameter change
-50.6 mm
-7.49%
Speedometer at 100
92.5 km/h
-7.49% error
Ground clearance
-25.3 mm
ride height delta
Sidewall change
-38.0 mm
revs/km: 509.1
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/compare/245-55-r16-vs-215-45-r17Detailed comparison
| Metric | 245/55 R16 | 215/45 R17 | Difference |
|---|---|---|---|
| Overall diameter | 675.9 mm | 625.3 mm | -50.6 mm (-7.49%) |
| Sidewall height | 134.8 mm | 96.8 mm | -38.0 mm |
| Circumference | 2.123 m | 1.964 m | -159.0 mm |
| Revs / km | 470.9 | 509.1 | +38.1 |
| Ground clearance | reference | -25.3 mm | -25.3 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 92.5 km/h | -7.49 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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245/55 R16
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215/45 R17