Runflat technology

Performance, safety, peace of mind

Run Flat tires mean safety.
They provide greater control of your car in emergency conditions and allow you to continue driving safely even during a rapid loss of inflation pressure. With Run Flat, you will retain mobility in the event of a puncture.
So, if your tire is punctured, even in pouring rain, the Pirelli Self-Supporting Run Flat means you don't have to bother with the spare.
Instead, you can continue driving for a limited period.To ensure maximum safety during an emergency situation, the Run Flat tire must maintain certain speed and distance parameters (80km/h for 80km or 50mph for 50 miles).

Due to these restrictions, it's imperative that motorists be notified when a loss in tire pressure occurs, and therefore the vehicle must be equipped with a TPMS (Tire Pressure Monitoring System) to detect and signal tire pressure changes.

Operating requirement

Run Flat tires have been developed based on the specifications of the vehicles on which they are mounted.
Accordingly, Run Flat tires may only be mounted on vehicles specifically manufactured to accommodate Run Flat tires. 

Run Flat tires must be mounted in conjunction with a functional tire Pressure Monitoring System (TPMS). The mounting of tires and installation of the TPMS should be carried out by a specialised dealer.

Pirelli certifies that after pressure loss, Run Flat tires can continue to run for 80km (50 miles) at a maximum speed of 80km/h (50 mph).

Always refer to the vehicle owner's manual for specific safety and operating information relating to the vehicle.

After the low pressure warning is shown, the condition of the remaining tires and the TPMS should be checked immediately by a specialised dealer.

A tire should always be changed and not repaired after a loss of pressure, as it is not always possible to establish the time and conditions under which the tire has been used with insufficient inflation pressure.Damaged Run Flat tires, or Run Flat tires that have experienced a loss of pressure should be replaced immediately with another Run Flat tire of identical size and service description (Load Index and Speed Code).
Pirelli recommends that a tire of a different type, or which contains a different load index or speed code, should never be mounted on the same vehicle.

After a loss of pressure, the rims should be inspected to ensure they haven't been damaged.
Damaged or deformed rims should always be replaced prior to mounting a new Run Flat tire.
Pirelli recommends the use of Extended Hump rims (EH2), which reduce the risk of bead unseating in case of loss of pressure.

Is it possible to fit a self-supporting run flat tyre on standard H2 rims? If so, will it still work as a run flat tyre and what are the implications?

Can standard tyres be fitted to EH2 rims? If so, will they work as run flat tyres?

Can I mix Pirelli self-supporting run flat tyres with another brand of run flat tyre?

Can I fit self-supporting run flat tyres on my car?

Can I repair a punctured Pirelli self-supporting run flat tire?

Can I use nitrogen instead of air to inflate my self-supporting run flat tires?

Is it possible to extend the 80km (50 miles) tyre range of a punctured run flat tire by re-inflating the tire?

What is the effect on performance when my self-supporting run flat tires are used in run flat conditions?

In run flat conditions with a Pirelli self-supporting run flat tire, can I drive for more than 80km (50 miles) if I drive slower than 80km/h (50 mph)?

How does a tire pressure monitoring device work?

How do I know if a tire is self-supporting run flat?

Why vehicle handbook states that my run flat tires can operate for 100miles (160km) but all Pirelli literature states 80km? Which is correct?

If one of my run flat tires sustains a puncture can I replace it with a standard tire?