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

Permalink for this comparison:

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Detailed comparison

Metric205/70 R15205/45 R16Difference
Overall diameter668.0 mm590.9 mm-77.1 mm (-11.54%)
Sidewall height143.5 mm92.3 mm-51.3 mm
Circumference2.099 m1.856 m-242.2 mm
Revs / km476.5538.7+62.2
Ground clearancereference-38.6 mm-38.6 mm
Speedometer @ 100 km/h100.0 km/h88.5 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

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Frequently asked questions

All 15″ sizes →All 16″ sizes →Speedometer error guide →Wheel offset guide →Plus-sizing guide →