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Tyre pressures

  • 31-01-2018 7:32pm
    #1
    ewj1978
    Registered Users, Registered Users 2 Posts: 1,936 ✭✭✭


    Hi all,
    Have a Nissan leaf and recently changed the fronts to rears and put new fronts on...

    anywho. When the tyre lad was moving the fronts he commented that they were wearing in the middle. I had a look and its well noticeable.
    he said (and I've googled it) that's its caused by over inflation.
    I have the tyres at the correct pressure for the car so any ideas what causing it or what remedy I should have.

    they're 215/55/r17


Comments

  • #2
    Atlantic Dawn
    Registered Users, Registered Users 2 Posts: 84,708 ✭✭✭✭Atlantic Dawn
    M


    What pressure do you have them at?


  • #3
    punisher5112
    Registered Users, Registered Users 2 Posts: 24,644 ✭✭✭✭punisher5112


    ewj1978 wrote: »
    Hi all,
    Have a Nissan leaf and recently changed the fronts to rears and put new fronts on...

    anywho. When the tyre lad was moving the fronts he commented that they were wearing in the middle. I had a look and its well noticeable.
    he said (and I've googled it) that's its caused by over inflation.
    I have the tyres at the correct pressure for the car so any ideas what causing it or what remedy I should have.

    they're 215/55/r17

    That's a known issue with them leaf machines.....


    It's due to weight of batteries mainly.


  • #4
    Del2005
    Registered Users, Registered Users 2 Posts: 19,100 ✭✭✭✭Del2005


    ewj1978 wrote: »
    Hi all,
    Have a Nissan leaf and recently changed the fronts to rears and put new fronts on...

    anywho. When the tyre lad was moving the fronts he commented that they were wearing in the middle. I had a look and its well noticeable.
    he said (and I've googled it) that's its caused by over inflation.
    I have the tyres at the correct pressure for the car so any ideas what causing it or what remedy I should have.

    they're 215/55/r17

    How accurate is the gauge that you used? I'd an old pen type gauge that I was using and turned out that I was over inflating by 3psi.


  • #5
    ewj1978
    Registered Users, Registered Users 2 Posts: 1,936 ✭✭✭ewj1978


    Atlantic Dawn wrote: »
    What pressure do you have them at?

    36 psi as stated on door panel.


  • #6
    ewj1978
    Registered Users, Registered Users 2 Posts: 1,936 ✭✭✭ewj1978


    Del2005 wrote: »
    How accurate is the gauge that you used? I'd an old pen type gauge that I was using and turned out that I was over inflating by 3psi.

    Had tyre place check them and just cos I have OCD checked myself on a nearby Garage. Both read 36psi, so as asked by nissan.


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  • #7
    Del2005
    Registered Users, Registered Users 2 Posts: 19,100 ✭✭✭✭Del2005


    punisher5112 wrote: »
    That's a known issue with them leaf machines.....


    It's due to weight of batteries mainly.

    Would it not wear down the sides for heavy batteries? The middle wearing is usually over inflated.


  • #8
    ewj1978
    Registered Users, Registered Users 2 Posts: 1,936 ✭✭✭ewj1978


    Del2005 wrote: »
    punisher5112 wrote: »
    That's a known issue with them leaf machines.....


    It's due to weight of batteries mainly.

    Would it not wear down the sides for heavy batteries? The middle wearing is usually over inflated.
    hence my questions.. dodgy tyre?


  • #9
    mickdw
    Registered Users, Registered Users 2 Posts: 23,686 ✭✭✭✭mickdw


    The fact is that if the centre portion is wearing most, the tyre is being run over inflated. It has taken up a balloon shape with the centre hitting road first.
    I'd simply drop them to 34 and see how that goes.
    Nissan may be over specifying the pressures for max efficiency.


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