Comparison
235/55 R16 vs 215/40 R17
Compared to 235/55 R16, 215/40 R17 is 61.1 mm shorter and changes the speedometer reading by -9.19%.
Current Tire
235/55R16
New Tire
215/40R17
235/55 R16
215/40 R17
Ground line · scaled comparison
Not Recommended
Over 5% — speedometer & ABS may misread
Diameter change
-61.1 mm
-9.19%
Speedometer at 100
90.8 km/h
-9.19% error
Ground clearance
-30.6 mm
ride height delta
Sidewall change
-43.3 mm
revs/km: 527.2
Permalink for this comparison:
/compare/235-55-r16-vs-215-40-r17Detailed comparison
| Metric | 235/55 R16 | 215/40 R17 | Difference |
|---|---|---|---|
| Overall diameter | 664.9 mm | 603.8 mm | -61.1 mm (-9.19%) |
| Sidewall height | 129.3 mm | 86.0 mm | -43.3 mm |
| Circumference | 2.089 m | 1.897 m | -192.0 mm |
| Revs / km | 478.7 | 527.2 | +48.4 |
| Ground clearance | reference | -30.6 mm | -30.6 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 90.8 km/h | -9.19 km/h |
Verdict: danger
Over 5% diameter difference — likely to affect speedometer accuracy, ABS calibration and gearing. Not recommended without professional review.
Back to
235/55 R16
Back to
215/40 R17