Comparison
265/35 R22 vs 275/35 R21
Switching from 265/35 R22 to 275/35 R21 steps down to a 21-inch wheel — a familiar move for winter and dedicated all-terrain sets. This sizing approach trims or stretches rolling diameter by a small margin.
The speedometer offset is small but measurable; worth keeping in mind if you watch the dash closely. Extra width broadens the footprint for more grip, but check inner liner and strut clearance before fitting. Minus-sizing keeps replacement costs down and opens up a wider range of winter and all-terrain tires. Diameter change stays inside the conservative ±3% safety window — an OEM-safe fitment on most vehicles.
TakeTypical choice for a dedicated winter or off-road setup where extra sidewall pays off.
Quick math: 275/35 R21 is 18.4 mm shorter than 265/35 R22, shifting the speedometer by -2.47%.
Current Tire
New Tire
Ground line · scaled comparison
Excellent Fit
Within ±3% — safe for daily driving
Diameter change
-18.4 mm
-2.47%
Speedometer at 100
97.5 km/h
-2.47% error
Ground clearance
-9.2 mm
ride height delta
Sidewall change
+3.5 mm
revs/km: 438.5
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/compare/265-35-r22-vs-275-35-r21Detailed comparison
| Metric | 265/35 R22 | 275/35 R21 | Difference |
|---|---|---|---|
| Overall diameter | 744.3 mm | 725.9 mm | -18.4 mm (-2.47%) |
| Sidewall height | 92.8 mm | 96.3 mm | +3.5 mm |
| Circumference | 2.338 m | 2.280 m | -57.8 mm |
| Revs / km | 427.7 | 438.5 | +10.8 |
| Ground clearance | reference | -9.2 mm | -9.2 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 97.5 km/h | -2.47 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 97.5 km/h after switching to 275/35 R21 — a -2.47% 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 -9.2 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
265/35 R22
Back to
275/35 R21
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