What Are Run-Flat Tyres?
Run-flat tyres (RFT) have reinforced sidewalls that support the vehicle's weight even when the tyre loses all air pressure. This allows you to continue driving at reduced speed (typically up to 80km/h) for up to 80km — enough to reach a tyre shop without needing a roadside tyre change.
Which Cars Come With Run-Flats?
Run-flat tyres are standard on many BMW, Mercedes-Benz, and Mini models. These vehicles often don't come with a spare tyre — the run-flat tyres. If you're driving an EV, check our guide on EV-specific tyres too capability replaces it. If your vehicle came with run-flats, you'll see markings like RSC, RFT, ROF, or ZP on the tyre sidewall.
Pros of Run-Flat Tyres
Safety: You maintain control during a puncture. If you don't have run-flats, our puncture repair service can sort you out quickly — no sudden blowout handling issues.
Convenience: No need to change a tyre roadside, especially useful on NZ's motorways and rural roads where safe stopping can be difficult.
Boot space: No spare tyre means more cargo room.
Cons of Run-Flat Tyres
Cost: Run-flats typically cost 30-50% more than equivalent standard tyres.
Ride comfort: The reinforced sidewalls make the ride firmer — noticeable on NZ's rougher roads.
Availability: Not all sizes are available in run-flat, and stock can be limited in NZ.
Not always repairable: If a run-flat has been driven on while flat, internal damage often means it can't be repaired.
Can You Switch to Standard Tyres?
In most cases, yes — but you'll need to carry a spare or a tyre repair kit. Your vehicle's TPMS will still function with standard tyres. However, consult with our team first, as some vehicles have specific requirements for tyre type.
Our Recommendation
For NZ driving, run-flats make sense if you do a lot of motorway commuting (like the SH1 corridor from Franklin to Auckland) or if your vehicle doesn't have room for a spare. For rural and off-road driving, standard tyres with a spare are more practical and economical. At Carter's Tyres Pukekohe, we stock and fit both options — talk to our team for advice specific to your vehicle.