Comparison
245/45 R20 vs 295/35 R20
295/35 R20 is a lower-profile take on 245/45 R20 — same 20-inch wheel, shorter sidewall. This swap moves rolling diameter a touch off the original spec. The shorter sidewall gives the tire a firmer, more responsive feel and sharpens steering input.
The speedometer offset is small but measurable; worth keeping in mind if you watch the dash closely. Overall the swap sits inside the safe ±3% diameter window, so ABS, traction control and gearing behave normally.
TakeSuits drivers who value sharper steering and appearance over outright ride softness.
Quick math: 295/35 R20 is 14.0 mm shorter than 245/45 R20, shifting the speedometer by -1.92%.
Current Tire
New Tire
Ground line · scaled comparison
Excellent Fit
Within ±3% — safe for daily driving
Diameter change
-14.0 mm
-1.92%
Speedometer at 100
98.1 km/h
-1.92% error
Ground clearance
-7.0 mm
ride height delta
Sidewall change
-7.0 mm
revs/km: 445.5
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/compare/245-45-r20-vs-295-35-r20Detailed comparison
| Metric | 245/45 R20 | 295/35 R20 | Difference |
|---|---|---|---|
| Overall diameter | 728.5 mm | 714.5 mm | -14.0 mm (-1.92%) |
| Sidewall height | 110.3 mm | 103.3 mm | -7.0 mm |
| Circumference | 2.289 m | 2.245 m | -44.0 mm |
| Revs / km | 436.9 | 445.5 | +8.6 |
| Ground clearance | reference | -7.0 mm | -7.0 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 98.1 km/h | -1.92 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 98.1 km/h after switching to 295/35 R20 — a -1.92% 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 -7.0 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
245/45 R20
Back to
295/35 R20
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