Comparison
255/40 R19 vs 275/35 R19
275/35 R19 is a wider variation of 255/40 R19 on the same 19-inch rim, adding 20 mm of tread footprint. This alternative fitment moves rolling diameter a touch off the original spec. The speedometer offset is small but measurable; worth keeping in mind if you watch the dash closely. The shorter sidewall gives the tire a firmer, more responsive feel and sharpens steering input. Diameter change stays inside the conservative ±3% safety window — an OEM-safe fitment on most vehicles.
TakeUseful when extra dry grip and stance matter more than a small fuel-economy hit.
Quick math: 275/35 R19 is 11.5 mm shorter than 255/40 R19, shifting the speedometer by -1.67%.
Current Tire
New Tire
Ground line · scaled comparison
Excellent Fit
Within ±3% — safe for daily driving
Diameter change
-11.5 mm
-1.67%
Speedometer at 100
98.3 km/h
-1.67% error
Ground clearance
-5.8 mm
ride height delta
Sidewall change
-5.8 mm
revs/km: 471.5
Permalink for this comparison:
/compare/255-40-r19-vs-275-35-r19Detailed comparison
| Metric | 255/40 R19 | 275/35 R19 | Difference |
|---|---|---|---|
| Overall diameter | 686.6 mm | 675.1 mm | -11.5 mm (-1.67%) |
| Sidewall height | 102.0 mm | 96.3 mm | -5.8 mm |
| Circumference | 2.157 m | 2.121 m | -36.1 mm |
| Revs / km | 463.6 | 471.5 | +7.9 |
| Ground clearance | reference | -5.8 mm | -5.8 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 98.3 km/h | -1.67 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 275/35 R19 — a -1.67% 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 -5.8 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
255/40 R19
Back to
275/35 R19
Drivers also compare
Closely-related fitments and plus-size swaps for 255/40 R19 and 275/35 R19.
225/45 R19 vs 255/40 R19
Wider variation on the same rim — more grip, less clearance.
Δ 0.22%
245/40 R19 vs 275/35 R19
Wider variation on the same rim — more grip, less clearance.
Δ 0.52%
255/40 R19 vs 285/35 R19
Wider variation on the same rim — more grip, less clearance.
Δ 0.66%
235/40 R19 vs 275/35 R19
Wider variation on the same rim — more grip, less clearance.
Δ 0.67%
275/35 R19 vs 285/35 R19
Wider variation on the same rim — more grip, less clearance.
Δ 1.04%
265/35 R19 vs 275/35 R19
Wider variation on the same rim — more grip, less clearance.
Δ 1.05%
245/40 R19 vs 255/40 R19
Wider variation on the same rim — more grip, less clearance.
Δ 1.18%
225/45 R19 vs 275/35 R19
Wider variation on the same rim — more grip, less clearance.
Δ 1.46%
Related topics