Riding on run flats at 0 psi

Samiad · 18 Apr 2008 at 22:48

Hypthetical question about run flat tyres really...if someone lets the air completely out of the tyre and that tyre gets driven on for 20 miles (as you are able to with run flats) - Can that tyre then be reinflated and used as normal (as there was no puncture to account for the pressure loss) or does the tyre have to be discarded - i.e. it's outlasted its 'usefulness' and should not be reinflated and used as before.

Clarkey · 18 Apr 2008 at 23:09

i'd say its fit for the bin after that imo.

Overlag · 18 Apr 2008 at 23:30

sidewalls would have been damaged by running flat (even with it being a runflat)

i think anyway.... lol

Pyscho_Si · 18 Apr 2008 at 23:30

Sidewalls would be ****ed. You shouldn't use them after they have been run as flat.

NeilMick · 19 Apr 2008 at 10:08

Then you can pay god know's how much to get your poor ride quality back

Pyscho_Si · 19 Apr 2008 at 10:29

£170 each for mine :-(

as I found out the other week when I found a nice big nail in one.

Joe T · 19 Apr 2008 at 10:30

Does anyone actually know the answer, or are you all just guessing?

Pyscho_Si · 19 Apr 2008 at 10:52

Run flats work by having a reinforced sidewall which takes on the weight of the car when you have a puncture. This is the reason you have to slow to 50MPH to stop the sidewall overheating and collapsing. Try kicking the sidewall of a car with runflats ... you won’t make a dent.