Comparison

215/70 R15 vs 205/50 R16

Compared to 215/70 R15, 205/50 R16 is 70.6 mm shorter and changes the speedometer reading by -10.35%.

Current Tire

215/70R15

New Tire

205/50R16
215/70 R15
205/50 R16

Ground line · scaled comparison

Not Recommended

Over 5% — speedometer & ABS may misread

Diameter change

-70.6 mm

-10.35%

Speedometer at 100

89.6 km/h

-10.35% error

Ground clearance

-35.3 mm

ride height delta

Sidewall change

-48.0 mm

revs/km: 520.6

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Detailed comparison

Metric215/70 R15205/50 R16Difference
Overall diameter682.0 mm611.4 mm-70.6 mm (-10.35%)
Sidewall height150.5 mm102.5 mm-48.0 mm
Circumference2.143 m1.921 m-221.8 mm
Revs / km466.7520.6+53.9
Ground clearancereference-35.3 mm-35.3 mm
Speedometer @ 100 km/h100.0 km/h89.6 km/h-10.35 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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215/70 R15

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205/50 R16

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Frequently asked questions

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