Comparison
265/55 R16 vs 225/45 R17
Compared to 265/55 R16, 225/45 R17 is 63.6 mm shorter and changes the speedometer reading by -9.11%.
Current Tire
265/55R16
New Tire
225/45R17
265/55 R16
225/45 R17
Ground line · scaled comparison
Not Recommended
Over 5% — speedometer & ABS may misread
Diameter change
-63.6 mm
-9.11%
Speedometer at 100
90.9 km/h
-9.11% error
Ground clearance
-31.8 mm
ride height delta
Sidewall change
-44.5 mm
revs/km: 501.8
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/compare/265-55-r16-vs-225-45-r17Detailed comparison
| Metric | 265/55 R16 | 225/45 R17 | Difference |
|---|---|---|---|
| Overall diameter | 697.9 mm | 634.3 mm | -63.6 mm (-9.11%) |
| Sidewall height | 145.8 mm | 101.3 mm | -44.5 mm |
| Circumference | 2.193 m | 1.993 m | -199.8 mm |
| Revs / km | 456.1 | 501.8 | +45.7 |
| Ground clearance | reference | -31.8 mm | -31.8 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 90.9 km/h | -9.11 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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265/55 R16
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225/45 R17