Tyres

Discussion in 'American RV's' started by caz, Feb 18, 2010.

  1. caz

    caz Read Only Funster

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    Went to move rig today - took wheel covers off and low and behold we have a couple of flat tyres.

    My question is - do we need to have the same make of tyres across the rear or the same tread.

    French garage have said we must have the same make and therefore need 4 new tyres.
     
  2. VMax666

    VMax666 Read Only Funster

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    Don't know if French law is different, but the only restriction in the uk is not to mix crossply and radial on the same axle.
    Why have they gone flat? If they have perished, check the dates on the others and if they are old then replacing all might be safer.
    VMax
     
  3. Bulletguy

    Bulletguy Read Only Funster

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    It seems to be. Just read a post on another forum quoting the same experience.
     
  4. pappajohn

    pappajohn Funster Life Member

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    found this Caz....a reasonable translation from french but you need to interpret some of the terminology.....

    basicly...you must have the same tread pattern among other criteria...

    4X4 must have identical tyres including the tread depth on all 4 wheels.

    When we go to change tires, at least two of the same route at the same time, since it is not considered suitable for the movement (ie not pass the ITV) a vehicle along the same tires fitted with a different picture its tread pattern, we have to look around with the features approved for our vehicle (which are included in the data sheet, but if we do not find exactly the same measure was accepted as equivalent those tires whose development differs by less than 3%, with the same rim). These features include both the size and the load index and speed symbol, the latter two of vital importance, so it must be at or above the approved, to ensure an adequate margin of safety.

    In vehicles with traction to the permanent four-wheel demand is even greater, all four tires must always be identical in make and model, and even wear, because small differences in diameter are likely to generate an abnormal warming of the separate groups, who work forced by the different development of the front and rear wheels, and in extreme cases may even be the cause of the fire at the vehicle.

    taken from...HERE
     
  5. Landy lover

    Landy lover Funster

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    My personal feelings on this from experience is that different makes have sometimes wildly differing rotational circumference and tread pattern therefore grip - that is without taking into account existing wear on the remaining tyres - the result can be uneven braking - excessive wear in the differential and in the long term can cost a lot more than a new set of boots. IMHO all tyres on the same axle should be of the same make and similar tread depth
     
  6. weymard

    weymard Read Only Funster

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    on every axle you must have the same mark, the same dimensions, the same model of tyres.
     
  7. Sundowners

    Sundowners Funster Life Member

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    Hi Weymard
    Does this mean that on a rear wheel drive vehicle you can't have grippy tyres on the drive axle and 'steering' tyres on the front axle ?? That does not seem very practical to me !!!
    Nigel
    BTW good to see you still visit us-----advice from France is VERY important to us as many of us spend a lot of time there !!!
     
  8. pappajohn

    pappajohn Funster Life Member

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    certainly looks like it in france Nigel.....just dont have two blowouts in the same trip :Sad:
     
  9. Landy lover

    Landy lover Funster

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    Hi Nigel & Pamala - one thought on that is yours is a dual rear wheeled truck - even French trucks have different tyres on the front axle for steering and generarally a chunky diamond pattern on the driving wheels - the same as on UK trucks. The all round same tyre rule may only apply to cars and light vans - may be worth researching but presumably what ever the law in UK is would be accepted on visiting vehicles any way - Hows the new 5'er coming on???
     
  10. weymard

    weymard Read Only Funster

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    legally we must have a same tyres front and rear but it is accepted by the rules to have have diffrent tyres between front and rear. This rules is the same that you have a Big truck with DRW (up to 3500 kg) or a light truck or a car under 3500kg.
    Just one thing : in theory the dimension of the tyres have to correspond to the specifications of the constructors written in the sticker apply on the doors. But in the real life if your tyres do not go out of the bodywork (I hope you understand what I mean..) you can drive without problem with the gendarmerie.
     

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