Comparison
215/70 R15 vs 225/45 R17
Compared to 215/70 R15, 225/45 R17 is 47.7 mm shorter and changes the speedometer reading by -6.99%.
Current Tire
215/70R15
New Tire
225/45R17
215/70 R15
225/45 R17
Ground line · scaled comparison
Not Recommended
Over 5% — speedometer & ABS may misread
Diameter change
-47.7 mm
-6.99%
Speedometer at 100
93.0 km/h
-6.99% error
Ground clearance
-23.9 mm
ride height delta
Sidewall change
-49.3 mm
revs/km: 501.8
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/compare/215-70-r15-vs-225-45-r17Detailed comparison
| Metric | 215/70 R15 | 225/45 R17 | Difference |
|---|---|---|---|
| Overall diameter | 682.0 mm | 634.3 mm | -47.7 mm (-6.99%) |
| Sidewall height | 150.5 mm | 101.3 mm | -49.3 mm |
| Circumference | 2.143 m | 1.993 m | -149.9 mm |
| Revs / km | 466.7 | 501.8 | +35.1 |
| Ground clearance | reference | -23.9 mm | -23.9 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 93.0 km/h | -6.99 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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215/70 R15
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225/45 R17