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Tire size.

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Piotrus Pan, Aug 10, 2015.

  1. Piotrus Pan

    Piotrus Pan Member

    Joined:
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    Luxembourg
    Vehicle:
    2010 Prius
    Model:
    III
    Hi everyone.
    I need to buy winter tires with rims but I get really confused about which size should I buy.

    Nearby mechanic said that in the full diagnostic papers there is a page with tire sizes and that's what I should use.
    I checked and I got 3 car types mentioned HW2, XW3(a) and XW3P. Variant of my car is ZVW30(H) so I guess the XW3(a) row is mine.
    There I have:
    Rim: 6J x 16
    Tire:
    195/55R16-87
    195/60R16-89
    205/55R16-91

    The manual gives me 2 options:
    Rim: 7J x 17
    Tire: 215/45R17 87W
    or
    Rim: 6J x 15
    Tire: 195/65R15 91H

    Just to make it harder I got the car with:
    Sumer:
    195/65R15 91H
    Winter:
    195/55R16
    and on the indoor sticker it also says 195/65R15 91H

    I would like to also add that it's really annoying that the speedometer shows about 8% higher speed than it really is, so if I could get tires that will at least lower this speed difference I would be really happy :)

    Also I would like to add that I know what all of those numbers and letters mean I just don't know which diameter I have to take, R15, R16 or R17 and which hight, 55, 60 or 65?
     
    #1 Piotrus Pan, Aug 10, 2015
    Last edited: Aug 10, 2015
  2. Den49

    Den49 Member

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    Location:
    Maryland
    Vehicle:
    2010 Prius
    Model:
    IV
    Amid the clutter of misinformation and odd choices, the owners manual is correct. 195/65R15 will give you better winter tire performance in snow than 215/45R17.

    Tire size information:
    Tire Tech Information - Tire Size Guide
     
    #2 Den49, Aug 10, 2015
    Last edited: Aug 10, 2015
    Mendel Leisk likes this.
  3. Mendel Leisk

    Mendel Leisk Senior Member

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    Oct 17, 2010
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    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    There's a corolla steel rim that'll work too, with 195/65R15. And regular, open-ended galvanized lug nuts are available.
     
    #3 Mendel Leisk, Aug 10, 2015
    Den49 likes this.
  4. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
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    Model:
    Touring
    Also, if you don't get TPMS sensors life will be easier/cheaper. The trade-off obviously: you don't have the warning, but extra sensors have high initial cost, and every time you swap you need to reprogram the car, either through dealership ($), or investing in your own equipment (more $).
     
    #4 Mendel Leisk, Aug 10, 2015
  5. Piotrus Pan

    Piotrus Pan Member

    Joined:
    Dec 1, 2014
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    Location:
    Luxembourg
    Vehicle:
    2010 Prius
    Model:
    III
    Hello all.
    Thank you for replying, sorry I haven't been too active in this thread.
    Here's what's going on.

    To start I would like to express my negative opinion about Luxembourg's vehicle law cause they dictate what tires I can use. I went to the administration and the gentleman there said to me "it doesn't matter what Toyota said about tires, you have to have what we require".
    Thankfully what they require is what the car was registered with, which is 195/65R15 91H. If I would like to change tire size I would have to re-register the car which of course costs :)

    If someone would be wondering what I bought:
    Rims:
    Aluett Typ 15 6,0x15 LK5/100 ET38 schwarz poliert jetzt bestellen! | A.T.U Auto-Teile-Unger

    They were on sail for 43€. I'm not big on style, anything would be ok for me.

    And tires:
    Pneu Avon Ice Touring ST : vente de pneus auto Avon sur Pneus Online

    They are not top of the line but people on forums were saying that it's the best combination between price and performance.

    Oh, and no TPMS sensors. My car didn't have them when I bought it so I'm not installing them now cause they are like 50 euro each.
     
    #5 Piotrus Pan, Aug 27, 2015
    Last edited: Aug 27, 2015
  6. GasperG

    GasperG Senior Member

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    Location:
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    Vehicle:
    2018 Prius
    Model:
    N/A
    In Europe we have COC document that is formed before you first register the car, I have to sizes in that document (15" and 17") if you wan't different size you either have to get certificate from rim model or from tyre manufacturer (Technische-freigabe) and then you have to pay for visual check and change of COC document.

    Getting 8% "larger" tires is not easy or maybe even impossible, deviation of 4% is probably max you could get.
     
    #6 GasperG, Aug 27, 2015
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