Comparison
205/70 R15 vs 205/45 R16
Compared to 205/70 R15, 205/45 R16 is 77.1 mm shorter and changes the speedometer reading by -11.54%.
Current Tire
205/70R15
New Tire
205/45R16
205/70 R15
205/45 R16
Ground line · scaled comparison
Not Recommended
Over 5% — speedometer & ABS may misread
Diameter change
-77.1 mm
-11.54%
Speedometer at 100
88.5 km/h
-11.54% error
Ground clearance
-38.6 mm
ride height delta
Sidewall change
-51.3 mm
revs/km: 538.7
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/compare/205-70-r15-vs-205-45-r16Detailed comparison
| Metric | 205/70 R15 | 205/45 R16 | Difference |
|---|---|---|---|
| Overall diameter | 668.0 mm | 590.9 mm | -77.1 mm (-11.54%) |
| Sidewall height | 143.5 mm | 92.3 mm | -51.3 mm |
| Circumference | 2.099 m | 1.856 m | -242.2 mm |
| Revs / km | 476.5 | 538.7 | +62.2 |
| Ground clearance | reference | -38.6 mm | -38.6 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 88.5 km/h | -11.54 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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205/70 R15
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205/45 R16