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Stretching Tyres !


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#31 minidaves

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Posted 21 February 2011 - 07:59 AM

give a set of stretched tyre's to someone who drives proper hard and either the car will come off the road due to the tyre not gripping or rolling of the rim, tyres are designed for rim sizes, to maximise performance, vehicle and tyre manufacturers spend millons of pounds working out what gives good perfomance, and ride, and someone with £2000 thinks they can do better, it may look cool, but it cannot work correctly and i cannot see how insurance companys can insure someone if they have tyres fitted not as recomended by the manufacture.

#32 Wil_h

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Posted 21 February 2011 - 08:54 AM

Big pink letters at the top, please read them before posting.

This one of those subjects that always ends up the same way, on a mini(AND NOT A VW) the rims aren't really safe to be stretched, the rims aren't designed to have this done to them. People do do it and do get away with it but from an engineering perspective its not correct and its not best practise. If you choose to do it then on your own head be it.


How are aftermarket wheels on a mini different to a VW?



give a set of stretched tyre's to someone who drives proper hard and either the car will come off the road due to the tyre not gripping or rolling of the rim, tyres are designed for rim sizes, to maximise performance, vehicle and tyre manufacturers spend millons of pounds working out what gives good perfomance, and ride, and someone with £2000 thinks they can do better, it may look cool, but it cannot work correctly and i cannot see how insurance companys can insure someone if they have tyres fitted not as recomended by the manufacture.


I think there is some trute in this, but I think worrying about the tyre comming off the rim is scaremongering. Considering the force applied to the tyre when cornering, the additional force of the streached tyre is small, and unlikely to be the straw that breaks the camels back, as it were.

It will certinally change the characteristics of the tyre, but not so tha tit is dangerous. Probably beter at some things and worse at others. Much like a bald tyre is crap in the wet, but better in the dry. It's all a compromise.

#33 Paul Wiginton

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Posted 21 February 2011 - 09:24 AM

It has been said that getting the bead into the right position in the rim is difficult, does that not send bells ringing? If its hard to fit then obviously it doesnt sit happily in place which, to me, means it is trying to come off before you even put it on a car and go nuts round corners

#34 lawnmowercrap

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Posted 21 February 2011 - 07:16 PM

Seeing as i'm an MOT tester, I can quite happily tell you that stretched tyres are NOT a failable item, and they only way they can even be noted on your MOT is by using a manual pass and advise. Which isnt even noted by VOSA and is merely the MOT testers opinion.

I can also tell you that the Police are also unable to fine or impound your car for stretched tyres after a lengthy discussion a few hours ago with my Uncle, who is a copper. He told me that it has been heard of, but in most cases it is appealed against and the charges are dropped.

Properly OVERLY stretched tyres are prone to returning from the bead seat, however in this case it's not. It's more likely that a 165/65 10 tyre will have bead failure than the size mentioned by the OP due to the massive sidewall movement.

And them being in, some cases, difficult to fit does not mean in anyway that they are dangerous. I struggled to fit my A032r's on my 10" Revo's. And if you want the worst type of tyre to fit in the world, try fitting a run flat. Run flats are literally EVIL and dangerous to fit. Have seen alloys crack because of the immense pressure they are under when either stretching over the rim, or having to seat them onto the bead.

I'm tyred (lol, pun) of people stating opinion over fact, so theres the facts (:

Edited by lawnmowercrap, 21 February 2011 - 07:19 PM.


#35 Paul Wiginton

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Posted 21 February 2011 - 07:30 PM

I see no fact there, your argument for safety is opinion only

#36 lawnmowercrap

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Posted 21 February 2011 - 07:34 PM

I see no fact there, your argument for safety is opinion only


Do apologise, have I not written it clearly enough? Do feel free to tell me how stating facts directly from VOSA and The Police are opinion?

Is VOSA not there to maintain the safety aspect of the car?

Edited by lawnmowercrap, 21 February 2011 - 07:35 PM.


#37 Paul Wiginton

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Posted 21 February 2011 - 07:37 PM

Those bits are fact but as said, your safety argument is opinion only

#38 mad mk1

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Posted 21 February 2011 - 07:39 PM

Why do it ?? as it looks a bit s--t in my eyes.

sorry i am not a boy racer.

#39 lawnmowercrap

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Posted 21 February 2011 - 07:40 PM

VOSA dont allow it as an MOT fail. Fact.
VOSA effectively decide what cars are safe to be on or off the road. Fact.
Is a car fitted with stretched tyres failable for an MOT and therefor unroadworthy and unsafe? No. FACT


A Mod needs to come in here and tidy this sh*t up....

#40 Paul Wiginton

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Posted 21 February 2011 - 07:45 PM

Im not talking about MOT and VOSA, you said at the bottom that it is safe - that is the bit that Im saying is only your opinion.
Anyway I know the MOT regs every bit aswell as you do and I know already that it isnt an MOT fail, the same as having tyre tread protruding from the bodywork isnt an MOT fail, Im just saying that it cannot be safe if manufacturers recommend a tyre size and you fit a narrower tyre

#41 lawnmowercrap

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Posted 21 February 2011 - 07:50 PM

Im not talking about MOT and VOSA, you said at the bottom that it is safe - that is the bit that Im saying is only your opinion.
Anyway I know the MOT regs every bit aswell as you do and I know already that it isnt an MOT fail, the same as having tyre tread protruding from the bodywork isnt an MOT fail, Im just saying that it cannot be safe if manufacturers recommend a tyre size and you fit a narrower tyre



Please quote me where I have stated that in my opinion it is perfectly safe? Ive stated scenarios I have encountred where these tyres have been fitted and how they have not faulted and how I wouldnt be concerned....

Take it you're an MOT tester to know the regs every bit as well as I do then?

Manufacturers also recomend that genuine service parts are used. Do you still use Genuine Rover parts to service your car?
Manufacturers also recomend that Main Dealers should carry out repairs. Take your Mini to a Rover dealer do you?

Edited by lawnmowercrap, 21 February 2011 - 07:51 PM.


#42 charie t

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Posted 21 February 2011 - 07:52 PM

MOT pass and safe are 2 different things.

#43 charie t

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Posted 21 February 2011 - 07:53 PM

Manufacturers also recomend that Main Dealers should carry out repairs. Take your Mini to a Rover dealer do you?

No they don't have a main dealer any more :-

#44 benspickup2011

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Posted 21 February 2011 - 07:54 PM

I had 145 tyres on 5.5j mini lights. Looked fine drove fine. In two years never had a problem and the car drove very positively due to the side wall not podging all over the place! As with everything, do what you want but moderation is the key.

#45 benspickup2011

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Posted 21 February 2011 - 07:57 PM

I'l be honest, do what you like to your own car. Couldn't care less. If your cars broken, il try and help but i dont think anyone has a place to tell someone what to do. I wont be streaching my tyres on my pickup. If however i had a VW i would streach them because there slow and dont go round corners anyway

Edited by benspickup2011, 21 February 2011 - 07:57 PM.





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