Comparison
205/55 R16 vs 215/50 R16
215/50 R16 is a wider variation of 205/55 R16 on the same 16-inch rim, adding 10 mm of tread footprint. This swap moves rolling diameter a touch off the original spec.
Expect a slight but noticeable shift in indicated speed compared to the original tires. Expect a more planted steering feel, at the cost of some of the cushioning a taller sidewall provides. More tread on the ground tends to improve dry grip and stance, with a small fuel-economy and clearance tradeoff. Overall the swap sits inside the safe ±3% diameter window, so ABS, traction control and gearing behave normally.
TakeReasonable performance-leaning swap as long as fender and suspension clearance check out.
Quick math: 215/50 R16 is 10.5 mm shorter than 205/55 R16, shifting the speedometer by -1.66%.
Current Tire
New Tire
Ground line · scaled comparison
Excellent Fit
Within ±3% — safe for daily driving
Diameter change
-10.5 mm
-1.66%
Speedometer at 100
98.3 km/h
-1.66% error
Ground clearance
-5.3 mm
ride height delta
Sidewall change
-5.3 mm
revs/km: 512.2
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/compare/205-55-r16-vs-215-50-r16Detailed comparison
| Metric | 205/55 R16 | 215/50 R16 | Difference |
|---|---|---|---|
| Overall diameter | 631.9 mm | 621.4 mm | -10.5 mm (-1.66%) |
| Sidewall height | 112.8 mm | 107.5 mm | -5.3 mm |
| Circumference | 1.985 m | 1.952 m | -33.0 mm |
| Revs / km | 503.7 | 512.2 | +8.5 |
| Ground clearance | reference | -5.3 mm | -5.3 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 98.3 km/h | -1.66 km/h |
Verdict: excellent
Within ±3% — speedometer, ABS and traction control should behave normally.
Speedometer impact
At a true 100 km/h, your dashboard will read 98.3 km/h after switching to 215/50 R16 — a -1.66% offset. Use the speedometer error calculator to recheck for other indicated speeds, and the speedometer error guide for the full background.
Ground clearance change
The new tire's half-diameter changes ride height by -5.3 mm. Small differences are absorbed by suspension travel, but anything beyond ±10 mm can affect headlight aim, fender clearance and bump-stop margin. See the plus-sizing guide before committing.
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205/55 R16
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215/50 R16
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