Comparison
245/40 R19 vs 265/35 R19
Stepping from 245/40 R19 to 265/35 R19 keeps the 19-inch wheel but widens the section by 20 mm. This sizing approach trims or stretches rolling diameter by a small margin. The shorter sidewall gives the tire a firmer, more responsive feel and sharpens steering input.
Expect a slight but noticeable shift in indicated speed compared to the original tires. Diameter change stays inside the conservative ±3% safety window — an OEM-safe fitment on most vehicles.
TakeReasonable performance-leaning swap as long as fender and suspension clearance check out.
Quick math: 265/35 R19 is 10.5 mm shorter than 245/40 R19, shifting the speedometer by -1.55%.
Current Tire
New Tire
Ground line · scaled comparison
Excellent Fit
Within ±3% — safe for daily driving
Diameter change
-10.5 mm
-1.55%
Speedometer at 100
98.5 km/h
-1.55% error
Ground clearance
-5.3 mm
ride height delta
Sidewall change
-5.3 mm
revs/km: 476.4
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/compare/245-40-r19-vs-265-35-r19Detailed comparison
| Metric | 245/40 R19 | 265/35 R19 | Difference |
|---|---|---|---|
| Overall diameter | 678.6 mm | 668.1 mm | -10.5 mm (-1.55%) |
| Sidewall height | 98.0 mm | 92.8 mm | -5.3 mm |
| Circumference | 2.132 m | 2.099 m | -33.0 mm |
| Revs / km | 469.1 | 476.4 | +7.4 |
| Ground clearance | reference | -5.3 mm | -5.3 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 98.5 km/h | -1.55 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 98.5 km/h after switching to 265/35 R19 — a -1.55% 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.
Back to
245/40 R19
Back to
265/35 R19
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