Worried about getting a puncture, you might want to consider run-flat tyres next time you change your car.
Run-flat tyres have either a reinforced sidewall or additional internal structure to provide partial support to the tyre in a deflated condition and are being offered by more and more manufacturers on new cars.
The vehicle handbook will give details but in general deflated tyres should be capable of at least 50 miles (range can vary with vehicle load) at speeds up to 50 mph. Tyres should be renewed or repaired as soon as possible following a puncture.
The TPMS will probably need to be reset after a new tyre has been fitted. Check the handbook for details.
Run Flat Tyre Markings
|Brand||Run Flat Tyre Descriptions|
|Bridgestone||RFT (Run lat Tyre|
|Continental||SSR (Self Supporting Run Flat|
|Dunlop||DSST (Dunlop Self Supporting Tyre)|
|Goodyear||EMT (Extended Mobility Tyre)|
|Michelin||ZP (Zero Pressure)|
|Pirelli||Tyre identified as a “Run Flat” tyre|
Fitments codes are stamped on the tyre to help identify any special features making it better suited for certain driving styles or vehicles
|RF||Reinforced||RO & AO||Audi|
|XL||Extra Load||G1||Various Fitment|
|MS||Mud / Snow||A||Renault Espace 4 Fitment|
|N0||Porsche Fitment||MO||Mercedes Fitment|
|N1||Porches Fitment||J||Jaguar Fitment|
|K1||FERRARI FITMENT||10PR||10 Ply|
|B||Bentley/Continental GT Fitment||MC1||MACLAREN FITMENT|
- Driving style – aggressive cornering
and braking increases wear
- Position front tyres wear faster because of
movement through steering & tyres on front
- Speed – high speed driving increases
temperature and wear
- Load – excess load increases wear
- Pressure – under inflation and over inflation
can both increase wear
Alignment – tyres will wear quickly and unevenly
if wheel alignment is wrong of if there is excessive
wear in suspension components like shock absorbers
Car Tyres Explained
Which are the right tyres to suit you, your budget, your vehicle, your expectations and your safety. The first thing to remember when you have a tyres fitted – regardless of the make or style – is that they will undoubtedly make the car ‘feel’ different even if they’re exactly the same type of tyre fitted again. It takes a few miles to settle in to new tyres and to understand the subtle differences in handling and cornering that new tyres provide.