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Having just come back from a 4 day tyre technical course at Michelin head office here in the uk, i thought i would post a little advice on this popular moddification that is sweeping the nation. The bottom line is, that over streching a tyre on a rim is possibly the worst thing you could ever do. After looking at basic tyre construction it becomes aparant that the side wall is made to cope with forces from the side and the shoulder, the way the casing plies are formed and the bead protector are all linked to the side wall. Changing how these sit on the rim is a receipe for diaster.
For example on a 205 /40/17 the max rim size is 8inch, any bigger, and you change how the tyre is going to react.
The fact that some garages refuse to fit them is a indication that there is problem. As they have a duty of care to there customers they simply will not take the chance.
The fact remains that these streched tyres look very very cool. would i drive round on a set ?, the 99.9% nothing bad will happen is a bit of a stab in the dark. But that 1% could be a blow out on the motorway at 70mph, a de-bead on a round about. The choice is yours !!!!
Would i drive on a set, NO WAY
For example on a 205 /40/17 the max rim size is 8inch, any bigger, and you change how the tyre is going to react.
The fact that some garages refuse to fit them is a indication that there is problem. As they have a duty of care to there customers they simply will not take the chance.
The fact remains that these streched tyres look very very cool. would i drive round on a set ?, the 99.9% nothing bad will happen is a bit of a stab in the dark. But that 1% could be a blow out on the motorway at 70mph, a de-bead on a round about. The choice is yours !!!!
Would i drive on a set, NO WAY
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