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Wheel Width 18 by 8.5 fit?

Discussion in 'Gen 3 Prius Accessories and Modifications' started by 78mao, Jun 20, 2011.

  1. 78mao

    78mao New Member

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    Hi guys, I have a Gen 2 and I was wondering if 18 by 8.5 all around would fit? I like the Forgestars F14, but the narrowest they come is 18 by 8.5 and I have did some search everyones running 7.5 or 8 in the front and just want to see if any other members here have ran 18. 8.5 !


    Really appreciate your guys help!

    Thanks!
     
    #1 78mao, Jun 20, 2011
  2. macmaster05

    macmaster05 Senor Member

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    @ 8.5" you'll probably have to roll your fenders.
     
    #2 macmaster05, Jun 20, 2011
  3. 78mao

    78mao New Member

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    i think the outside should be fine, im worried about the inside if it might hit the strut or not.
     
    #3 78mao, Jun 20, 2011
  4. macmaster05

    macmaster05 Senor Member

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    well, then you do spacers, in which case you still might need to roll fenders. what's the offset?
     
    #4 macmaster05, Jun 20, 2011
  5. 78mao

    78mao New Member

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    They are custom offset, so I can request for whatever offset they offer. what would you suggest?
     
    #5 78mao, Jun 20, 2011
  6. Gruppe-S

    Gruppe-S Junior Member

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    Don't forget tire size will affect the offset you need to run. What tire size were you thinking? You might have to stretch some tires too.
     
    #6 Gruppe-S, Jun 20, 2011
  7. 78mao

    78mao New Member

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    yea I understand, so maybe just minor stretch of 205 on a 8.5?
     
    #7 78mao, Jun 21, 2011
  8. 32kcolors

    32kcolors Senior Member

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    Don't stretch the tires. Looks terrible. Use the proper tire width for the rims.
     
    #8 32kcolors, Jun 21, 2011
    1 person likes this.
  9. F8L

    F8L Protecting Habitat & AG Lands

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    Here is a wheel offset calculator. You need to know the offset ofthe OEM wheel currently on the car.

    Wheel Offset Calculator

    You could try a 225/40/18 tire. That would be very close to OEM diameter.

    The ContiTouringContact CW95 is a LRR tire in that size but it doesn't have a good treadwear rating and it's pricey at $196/ea..

    The Continental ExtremeContact DWS is a favorite of the guys with 18" wheels and they are only $144/ea..
     
    #9 F8L, Jun 21, 2011
  10. GloryThief

    GloryThief Junior Member

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    Take the measurement of inner and outer clearance. Use the offset calculater and you'll then know what you can run and what offsets you'll need
     
    #10 GloryThief, Jun 21, 2011
  11. F8L

    F8L Protecting Habitat & AG Lands

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    #11 F8L, Jun 21, 2011
  12. peterjmc

    peterjmc Ping pong in Ding Dang...

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    Late reply and the answer that the OP asked is probably OBE.



    I run 18x8.5 with a +48 offset.

    245/40 and 235/40 tire size will rub in the front if you are lowered. 245/40 will rub in the rear but 235/40 you miiiight be okay. 235/40 is still a bit wide but might be narrow enough to not rub. With 245/40s I did not have to roll fenders.

    With that said, If you are running 18x8.5 you should be okay with 225/40 up front and more than okay with 215/40s and not rub.

    +48 is the perfect offset to have the front wheel flush with the fender. A 5mm spacer could be used in the rear if you don't like the look of your wheel possibly tucking into the fender well.
     
    #12 peterjmc, Oct 19, 2011
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