Comparison
215/55 R17 vs 255/35 R19
255/35 R19 is a plus-2 alternative to 215/55 R17 — the bigger wheel shows through a thinner sidewall. This alternative fitment preserves rolling diameter within a hair of the original. Speedometer drift stays small enough that most drivers won't notice it day to day. The shorter sidewall gives the tire a firmer, more responsive feel and sharpens steering input. Overall the swap sits inside the safe ±3% diameter window, so ABS, traction control and gearing behave normally.
TakeA solid pick for drivers chasing a more aggressive stance without abandoning OEM rolling diameter.
Quick math: 255/35 R19 is 7.2 mm shorter than 215/55 R17, shifting the speedometer by -1.08%.
Current Tire
New Tire
Ground line · scaled comparison
Excellent Fit
Within ±3% — safe for daily driving
Diameter change
-7.2 mm
-1.08%
Speedometer at 100
98.9 km/h
-1.08% error
Ground clearance
-3.6 mm
ride height delta
Sidewall change
-29.0 mm
revs/km: 481.5
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/compare/215-55-r17-vs-255-35-r19Detailed comparison
| Metric | 215/55 R17 | 255/35 R19 | Difference |
|---|---|---|---|
| Overall diameter | 668.3 mm | 661.1 mm | -7.2 mm (-1.08%) |
| Sidewall height | 118.3 mm | 89.3 mm | -29.0 mm |
| Circumference | 2.100 m | 2.077 m | -22.6 mm |
| Revs / km | 476.3 | 481.5 | +5.2 |
| Ground clearance | reference | -3.6 mm | -3.6 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 98.9 km/h | -1.08 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 98.9 km/h after switching to 255/35 R19 — a -1.08% 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 -3.6 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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215/55 R17
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255/35 R19
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