Comparison
225/45 R19 vs 255/35 R19
Going from 225/45 R19 to 255/35 R19 keeps the rim but tightens the sidewall for a sportier look. This setup noticeably changes overall diameter compared to OEM.
Indicated speed will drift far enough that recalibration is worth considering. Expect a more planted steering feel, at the cost of some of the cushioning a taller sidewall provides. Extra width broadens the footprint for more grip, but check inner liner and strut clearance before fitting. The 3–5% diameter gap puts this in caution territory: doable on many cars, but verify clearance and consider recalibration.
TakeSuits drivers who value sharper steering and appearance over outright ride softness.
Quick math: 255/35 R19 is 24.0 mm shorter than 225/45 R19, shifting the speedometer by -3.50%.
Current Tire
New Tire
Ground line · scaled comparison
Slight Difference
Within ±5% — usable, recalibration recommended
Diameter change
-24.0 mm
-3.50%
Speedometer at 100
96.5 km/h
-3.50% error
Ground clearance
-12.0 mm
ride height delta
Sidewall change
-12.0 mm
revs/km: 481.5
Permalink for this comparison:
/compare/225-45-r19-vs-255-35-r19Detailed comparison
| Metric | 225/45 R19 | 255/35 R19 | Difference |
|---|---|---|---|
| Overall diameter | 685.1 mm | 661.1 mm | -24.0 mm (-3.50%) |
| Sidewall height | 101.3 mm | 89.3 mm | -12.0 mm |
| Circumference | 2.152 m | 2.077 m | -75.4 mm |
| Revs / km | 464.6 | 481.5 | +16.9 |
| Ground clearance | reference | -12.0 mm | -12.0 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 96.5 km/h | -3.50 km/h |
Verdict: warning
Between 3% and 5% — noticeable speedometer drift; recalibration may be advisable.
Speedometer impact
At a true 100 km/h, your dashboard will read 96.5 km/h after switching to 255/35 R19 — a -3.50% 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 -12.0 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.
Back to
225/45 R19
Back to
255/35 R19
Drivers also compare
Closely-related fitments and plus-size swaps for 225/45 R19 and 255/35 R19.
225/45 R19 vs 255/40 R19
Wider variation on the same rim — more grip, less clearance.
Δ 0.22%
225/40 R19 vs 255/35 R19
Wider variation on the same rim — more grip, less clearance.
Δ 0.23%
225/45 R19 vs 285/35 R19
Wider variation on the same rim — more grip, less clearance.
Δ 0.44%
225/45 R19 vs 245/40 R19
Wider variation on the same rim — more grip, less clearance.
Δ 0.95%
255/35 R19 vs 265/35 R19
Wider variation on the same rim — more grip, less clearance.
Δ 1.06%
245/35 R19 vs 255/35 R19
Wider variation on the same rim — more grip, less clearance.
Δ 1.07%
235/40 R19 vs 255/35 R19
Wider variation on the same rim — more grip, less clearance.
Δ 1.42%
225/45 R19 vs 275/35 R19
Wider variation on the same rim — more grip, less clearance.
Δ 1.46%
Related topics