Comparison
265/50 R20 vs 295/40 R20
295/40 R20 is a lower-profile take on 265/50 R20 — same 20-inch wheel, shorter sidewall. This sizing approach swings rolling diameter far enough to feel on the road. Expect a more planted steering feel, at the cost of some of the cushioning a taller sidewall provides.
Indicated speed will drift far enough that recalibration is worth considering. Diameter delta falls in the cautious 3–5% range, where speedometer recalibration and a careful clearance check are worth doing.
TakeSuits drivers who value sharper steering and appearance over outright ride softness.
Quick math: 295/40 R20 is 29.0 mm shorter than 265/50 R20, shifting the speedometer by -3.75%.
Current Tire
New Tire
Ground line · scaled comparison
Slight Difference
Within ±5% — usable, recalibration recommended
Diameter change
-29.0 mm
-3.75%
Speedometer at 100
96.2 km/h
-3.75% error
Ground clearance
-14.5 mm
ride height delta
Sidewall change
-14.5 mm
revs/km: 427.8
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/compare/265-50-r20-vs-295-40-r20Detailed comparison
| Metric | 265/50 R20 | 295/40 R20 | Difference |
|---|---|---|---|
| Overall diameter | 773.0 mm | 744.0 mm | -29.0 mm (-3.75%) |
| Sidewall height | 132.5 mm | 118.0 mm | -14.5 mm |
| Circumference | 2.428 m | 2.337 m | -91.1 mm |
| Revs / km | 411.8 | 427.8 | +16.1 |
| Ground clearance | reference | -14.5 mm | -14.5 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 96.2 km/h | -3.75 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 96.2 km/h after switching to 295/40 R20 — a -3.75% 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 -14.5 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
265/50 R20
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295/40 R20
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