Comparison
155/70 R13 vs 225/45 R17
Compared to 155/70 R13, 225/45 R17 is 87.1 mm taller and changes the speedometer reading by +15.92%.
Current Tire
155/70R13
New Tire
225/45R17
155/70 R13
225/45 R17
Ground line · scaled comparison
Not Recommended
Over 5% — speedometer & ABS may misread
Diameter change
+87.1 mm
15.92%
Speedometer at 100
115.9 km/h
+15.92% error
Ground clearance
+43.5 mm
ride height delta
Sidewall change
-7.3 mm
revs/km: 501.8
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/compare/155-70-r13-vs-225-45-r17Detailed comparison
| Metric | 155/70 R13 | 225/45 R17 | Difference |
|---|---|---|---|
| Overall diameter | 547.2 mm | 634.3 mm | +87.1 mm (+15.92%) |
| Sidewall height | 108.5 mm | 101.3 mm | -7.3 mm |
| Circumference | 1.719 m | 1.993 m | +273.6 mm |
| Revs / km | 581.7 | 501.8 | -79.9 |
| Ground clearance | reference | +43.5 mm | +43.5 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 115.9 km/h | +15.92 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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155/70 R13
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225/45 R17