Comparison
265/35 R20 vs 225/45 R17
Compared to 265/35 R20, 225/45 R17 is 59.2 mm shorter and changes the speedometer reading by -8.54%.
Current Tire
265/35R20
New Tire
225/45R17
265/35 R20
225/45 R17
Ground line · scaled comparison
Not Recommended
Over 5% — speedometer & ABS may misread
Diameter change
-59.2 mm
-8.54%
Speedometer at 100
91.5 km/h
-8.54% error
Ground clearance
-29.6 mm
ride height delta
Sidewall change
+8.5 mm
revs/km: 501.8
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/compare/265-35-r20-vs-225-45-r17Detailed comparison
| Metric | 265/35 R20 | 225/45 R17 | Difference |
|---|---|---|---|
| Overall diameter | 693.5 mm | 634.3 mm | -59.2 mm (-8.54%) |
| Sidewall height | 92.8 mm | 101.3 mm | +8.5 mm |
| Circumference | 2.179 m | 1.993 m | -186.0 mm |
| Revs / km | 459.0 | 501.8 | +42.8 |
| Ground clearance | reference | -29.6 mm | -29.6 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 91.5 km/h | -8.54 km/h |
Verdict: danger
Over 5% diameter difference — likely to affect speedometer accuracy, ABS calibration and gearing. Not recommended without professional review.
Back to
265/35 R20
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225/45 R17