Yes, this size is most commonly used as a rear fitment where the front tyres are narrower for balanced handling. Always confirm the exact front and rear sizes on the door jamb placard or in the handbook before ordering, as some 23-inch conversions vary by wheel width and offset.
It means a 335 mm tyre width, a 30% aspect ratio (a short sidewall relative to the width), and a radial construction for a 23-inch rim. This combination prioritises road grip and steering precision, but it can be less forgiving over potholes than taller-profile options.
Match the load index and speed rating exactly to the vehicle specification, and do not downgrade. Many tyres in this size are offered with higher ratings suitable for heavier, high-powered vehicles, but the correct choice depends on your model, axle rating and any manufacturer requirements.
Availability is limited compared with smaller sizes, and most options are summer performance tyres. All-season choices do exist from selected brands, while dedicated winter tyres are less common, so many drivers use a separate winter wheel and tyre package if they need cold-weather performance.
Only if your vehicle and wheels are compatible and you are happy with the ride characteristics of run-flats. Avoid mixing run-flat and non run-flat tyres on the same vehicle, and check manufacturer guidance and insurer requirements before switching.