Avoiding flat spotting new expensive tyres
Discussion
My motor needs a new set of tyres and I will be shelling out approx £1200 for Michelin P4Ss.
However, the car will be put into temporary storage in a 6 weeks or so from now, for about 8 weeks, on a hard concrete floored garage.
Ideally id be able to wait until after it’s been in storage and bin off the old tyres then, but it’s in desperate need of them now
Don’t want to invest in proper tyres then have them ruined by standing for a while - are they more vulnerable to flat spotting when fresh and “softer?” Car won’t be moving in the 8 weeks of storage.
Aside from slightly over inflating, any tips that could be handy? Or should I really wait until after the storage period? Or am I being paranoid
Cheers
However, the car will be put into temporary storage in a 6 weeks or so from now, for about 8 weeks, on a hard concrete floored garage.
Ideally id be able to wait until after it’s been in storage and bin off the old tyres then, but it’s in desperate need of them now
Don’t want to invest in proper tyres then have them ruined by standing for a while - are they more vulnerable to flat spotting when fresh and “softer?” Car won’t be moving in the 8 weeks of storage.
Aside from slightly over inflating, any tips that could be handy? Or should I really wait until after the storage period? Or am I being paranoid
Cheers
I could bore you for a considerable period of time on flat spots.
There are two main groupings....
Short term flatspots are caused by the structure of the tyre deforming due to the ground contact forces. These can form quite quickly and can normally be driven out within 20 or so miles of driving. Higher pressure helps here, as does parking the car with the tyres cool/not hot.
Long term flatspots are nastier. These are slower to form and often permanent, the tyres are scrap. Mechanism is as follows...A tyre carcass is usually under equal tension stress from air pressure... however the weight of the vehicle acting through the wheel on to the tyres creates additional tension stress on the carcass fibres above the wheel and removes some of the tension stress on the carcass fibres under the wheel. End result is that the fibres above the wheel creep("time-dependent" deformation)/stretch more than the fibres under the wheel. Lower pressure helps here, as you keep the critical fibres above the wheel less under tension. Some carcass materials are more susceptible than others.
Sorry for spelling/syntax errors... I'm tired.
There are two main groupings....
Short term flatspots are caused by the structure of the tyre deforming due to the ground contact forces. These can form quite quickly and can normally be driven out within 20 or so miles of driving. Higher pressure helps here, as does parking the car with the tyres cool/not hot.
Long term flatspots are nastier. These are slower to form and often permanent, the tyres are scrap. Mechanism is as follows...A tyre carcass is usually under equal tension stress from air pressure... however the weight of the vehicle acting through the wheel on to the tyres creates additional tension stress on the carcass fibres above the wheel and removes some of the tension stress on the carcass fibres under the wheel. End result is that the fibres above the wheel creep("time-dependent" deformation)/stretch more than the fibres under the wheel. Lower pressure helps here, as you keep the critical fibres above the wheel less under tension. Some carcass materials are more susceptible than others.
Sorry for spelling/syntax errors... I'm tired.
thebraketester said:
Could you not just delay new tyre time until after the time in storage?
This was an option - however it means I can't really use the car as intended for next 2 months before it and I goes away. And then when I'm back we're deep into winter. The rears are bang on the limits, old, cracked and noticibly getting nasty to drive on.... dilemma!Rather than axle stands, are cheapo tyre cradles any good?
For example these for £24. Not spending £300 i've seen some at!
https://www.ebay.co.uk/itm/186097580266?chn=ps&...
Krhuangbin said:
My motor needs a new set of tyres and I will be shelling out approx £1200 for Michelin P4Ss.
However, the car will be put into temporary storage in a 6 weeks or so from now, for about 8 weeks, on a hard concrete floored garage.
Ideally id be able to wait until after it’s been in storage and bin off the old tyres then, but it’s in desperate need of them now
Don’t want to invest in proper tyres then have them ruined by standing for a while - are they more vulnerable to flat spotting when fresh and “softer?” Car won’t be moving in the 8 weeks of storage.
Aside from slightly over inflating, any tips that could be handy? Or should I really wait until after the storage period? Or am I being paranoid
Cheers
Is this a serious question ?However, the car will be put into temporary storage in a 6 weeks or so from now, for about 8 weeks, on a hard concrete floored garage.
Ideally id be able to wait until after it’s been in storage and bin off the old tyres then, but it’s in desperate need of them now
Don’t want to invest in proper tyres then have them ruined by standing for a while - are they more vulnerable to flat spotting when fresh and “softer?” Car won’t be moving in the 8 weeks of storage.
Aside from slightly over inflating, any tips that could be handy? Or should I really wait until after the storage period? Or am I being paranoid
Cheers
Levitating cars are some way off, wouldn't it be terrible if cars could not park on their tyres. What a shocker.
I once worked on a luxury apartment development. One resident had a brand new Aston Martin DBS that he parked on little pads in the underground car park. They weren't particularly thick and didn't look very soft, but would have been less hard and cold than the concrete floor I guess.
They do storage cups for this
I thought who an earth would bother with that
then saw Porsche drivers use them for storage and thought, yeah, that’d be right
Eta: tyre cradles seem to be their name, there similar to these https://www.fruugo.fr/2pcs-tire-saver-ramps-heavy-...
Amusingly i’d need 2 side by side for the lambos 355 wide tyres
I thought who an earth would bother with that
then saw Porsche drivers use them for storage and thought, yeah, that’d be right Eta: tyre cradles seem to be their name, there similar to these https://www.fruugo.fr/2pcs-tire-saver-ramps-heavy-...
Amusingly i’d need 2 side by side for the lambos 355 wide tyres
Edited by Whatever123 on Friday 9th August 15:42
stevieturbo said:
Krhuangbin said:
My motor needs a new set of tyres and I will be shelling out approx £1200 for Michelin P4Ss.
However, the car will be put into temporary storage in a 6 weeks or so from now, for about 8 weeks, on a hard concrete floored garage.
Ideally id be able to wait until after it’s been in storage and bin off the old tyres then, but it’s in desperate need of them now
Don’t want to invest in proper tyres then have them ruined by standing for a while - are they more vulnerable to flat spotting when fresh and “softer?” Car won’t be moving in the 8 weeks of storage.
Aside from slightly over inflating, any tips that could be handy? Or should I really wait until after the storage period? Or am I being paranoid
Cheers
Is this a serious question ?However, the car will be put into temporary storage in a 6 weeks or so from now, for about 8 weeks, on a hard concrete floored garage.
Ideally id be able to wait until after it’s been in storage and bin off the old tyres then, but it’s in desperate need of them now
Don’t want to invest in proper tyres then have them ruined by standing for a while - are they more vulnerable to flat spotting when fresh and “softer?” Car won’t be moving in the 8 weeks of storage.
Aside from slightly over inflating, any tips that could be handy? Or should I really wait until after the storage period? Or am I being paranoid
Cheers
Levitating cars are some way off, wouldn't it be terrible if cars could not park on their tyres. What a shocker.
Nothing to worry about then it sounds like - new rubber it is
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