Steering feel
Sharper steering response
Short sidewall loads the contact patch fast — quick turn-in and confident on-center feel.
Tire size meaning
315/30 R22
What the numbers on a 315/30 R22 tire actually mean — width, sidewall, construction and rim — explained in plain language with real-world driving context.
Direct answer
What does 315/30 R22 mean?
315/30 R22 is a metric tire size: 315 mm wide, a sidewall 30% of that width (95 mm), radial construction, fitted to a 22-inch wheel. Overall diameter ≈ 748 mm.
- 315
- Section width in mm (sidewall to sidewall).
- 30
- Aspect ratio — sidewall is 30% of width (95 mm).
- R
- Radial construction — the modern layered build.
- 22
- Wheel rim diameter in inches (559 mm).
Ø 748 mm · 29.44″ · 426 revs/km
Dimensional breakdown
- Section width
- 315 mm
- Aspect ratio
- 30%
- Sidewall height
- 94.5 mm
- Rim diameter
- 22″ (558.8 mm)
- Overall diameter
- 748 mm
- Circumference
- 2.349 m
- Revs per km
- 426
- Construction
- Radial (R)
What 315/30 R22 feels like on the road
A 315/30 R22 tire is a low-profile sporty tire. With a sidewall of 95 mm, it gives precise turn-in with a reasonable ride compromise — typical for sport sedans and hot hatches.
The 315 mm contact width delivers maximum contact patch for high-performance and SUV applications. Combined with a 22-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 426 revolutions per kilometre — the figure your speedometer and ABS were calibrated against if 315/30 R22 is the OEM specification.
Common alternatives to 315/30 R22
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 315/30 R22 usually feels like
A driver-perspective read on this size — steering, comfort, highway stability and rough-road behavior.
Ride comfort
Firmer over rough pavement
Short sidewall transmits more imperfections and increases wheel-damage risk on potholes.
Highway stability
Planted at highway speed
Wider contact patch resists crosswinds and tramlining — strong straight-line confidence.
Pothole comfort
Less margin against pothole damage
Run wider arc around potholes — short sidewall means the rim takes more of the hit.
Sporty vs OEM tone
Aggressive performance setup
A performance fingerprint — sharp, planted, low and committed.
Sidewall95 mm
Ø748 mm
Width315 mm
Revs/km426
Related tire sizes for 315/30 R22
Explore neighbouring sizes by intent — similar, wider, lower-profile, OEM-safe, or aggressive. Each link opens a full side-by-side comparison.