Tire size meaning

295/35 R21

What the numbers on a 295/35 R21 tire actually mean — width, sidewall, construction and rim — explained in plain language with real-world driving context.

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Direct answer

What does 295/35 R21 mean?

295/35 R21 is a metric tire size: 295 mm wide, a sidewall 35% of that width (103 mm), radial construction, fitted to a 21-inch wheel. Overall diameter ≈ 740 mm.

295
Section width in mm (sidewall to sidewall).
35
Aspect ratio — sidewall is 35% of width (103 mm).
R
Radial construction — the modern layered build.
21
Wheel rim diameter in inches (533 mm).

Ø 740 mm · 29.13″ · 430 revs/km

Section width 295 mmSidewall 103 mmR21 (533 mm)Ø 740 mm (29.13″)

Dimensional breakdown

Section width
295 mm
Aspect ratio
35%
Sidewall height
103.3 mm
Rim diameter
21″ (533.4 mm)
Overall diameter
740 mm
Circumference
2.324 m
Revs per km
430
Construction
Radial (R)

What 295/35 R21 feels like on the road

A 295/35 R21 tire is a low-profile sporty tire. With a sidewall of 103 mm, it gives precise turn-in with a reasonable ride compromise — typical for sport sedans and hot hatches.

The 295 mm contact width delivers maximum contact patch for high-performance and SUV applications. Combined with a 21-inch wheel, this size is most commonly found on performance SUVs, luxury sedans and aftermarket plus-size setups.

At highway speed each tire completes about 430 revolutions per kilometre — the figure your speedometer and ABS were calibrated against if 295/35 R21 is the OEM specification.

Common alternatives to 295/35 R21

Sizes within ±3% overall diameter — generally safe swaps for speedometer accuracy and clearance. Click any size to open a full side-by-side comparison.

Driver feel · telemetry

What 295/35 R21 usually feels like

A driver-perspective read on this size — steering, comfort, highway stability and rough-road behavior.

Steering feel

Balanced, OEM-style response

A familiar OEM feel — predictable inputs without trade-offs.

Ride comfort

Comfortable daily ride

A balanced compromise — bumps muted, steering still precise.

Highway stability

Planted at highway speed

Wider contact patch resists crosswinds and tramlining — strong straight-line confidence.

Pothole comfort

Reasonable impact protection

Enough sidewall to protect the rim from typical urban hits.

Sporty vs OEM tone

Balanced everyday character

A factory-style balance between feel, comfort and grip.

Sidewall103 mm
Ø740 mm
Width295 mm
Revs/km430

Related tire sizes for 295/35 R21

Explore neighbouring sizes by intent — similar, wider, lower-profile, OEM-safe, or aggressive. Each link opens a full side-by-side comparison.

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Frequently asked questions