One More Spare Tire Question

Discussion in 'Prime Main Forum (2017-Current)' started by bbqnosher, Mar 21, 2021.

  1. bbqnosher

    bbqnosher Junior Member

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    OK…..one more spare tire question….



    Just purchased a 2021 prime and looking for both donut and full size spare options. From reading the many posting on spare tire options I concluded the following

    For the donut spare option: Using the donut from 3rd generation Prius would be fine….so I kept my 3rd gen Prius donut spare..

    For the full size spare(regular tire) option it appears ONLY a wheel from the 4th generation Prius will work. Reason: According to Wheel-size.com ….the 4th generation prius prime uses a. 6.5JET40 wheel which translates into a 6.5 inch wide wheel, 15 inches in diameter with a 45 mm offset……with a bore size of 54.1 mm and a 5x100 bolt pattern………while the 3rd generation prius uses a 6JET45 wheel which translates into a 6 inch wide wheel, 15 inches in diameter and a 45 mm offset with bore size and bolt pattern the same.

    Doesn’t the difference in the 3rd and 4th generation wheel….1/2 inch in width and 5 mm in offset eliminate the use of a 3rd gen wheel or is the difference in width and offset not significant. Both wheels use the same tire size 195/65 -15.

    What am I missing?
     
  2. Mendel Leisk

    Mendel Leisk Senior Member

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    That is a puzzler; typo on that site? I’ve got a hunch you could put 3rd gen rims on 4th gen with no ill effects.

    One gotcha tho: the centre caps are different. there’s a groove in the rim bore that the cap jaws click into, and it’s depth into the bore varies, just enough to screw things up the better.
     
    #2 Mendel Leisk, Mar 21, 2021
    Last edited: Mar 21, 2021
  3. PT Guy

    PT Guy Senior Member

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    bb, check the age of the compact spare tire. If it is getting up in years (more than 10 years) consider buying a new compact spare tire. The last thing you need is an unreliable spare tire.

    I think the 6" wide Prius wheel would be with the wide 17" tire.
     
  4. Salamander_King

    Salamander_King Senior Member

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    You do not have to use the OEM wheel for a full-size spare. I had a flat on one tire on my Gen3 but was un-repairable. I ended up buying two new tires. I just picked up a generic steel wheel from Walmart and asked them to mount the one good tire off of Gen3 Prius. Works fine on Prius PRIME. Cost $50 for a rim and $15 for mounting and balancing. The old tire was free repurposed.

    upload_2021-3-22_13-26-25.png
     
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  5. bbqnosher

    bbqnosher Junior Member

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    Would you happen to remember what the specs(or model number) were for the generic wheel you purchased at Walmart?
     
  6. Salamander_King

    Salamander_King Senior Member

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    Sorry, I don't remember the brand or part number for the wheel. I just checked the wheel and tire in my garage. It is so generic, that it has no branding of any kind on the wheel front or back unless they are visible only inside of the wheel. The only identification mark I can find on the inside face of the rime says "MADE IN USA 15x6.0 L.C.1.D. JJ" I got it at the Walmart auto center. I just asked for a cheap steely that would fit my Gen3 Prius at the counter and this was what they had. Paid ~$50 6 years ago.

    Maybe not the exact model, but this is a very similar wheel that should work on PP (or Gen4 or Gen3). You can find a similar wheel at eBay cheaper.
    www.amazon.com/dp/B00MNTD1KC/

    Alternatively, if you want OEM quality, then you can get a 15" Corolla or Matrix steel wheel. The parts number escapes my memory. @Mendel Leisk can provide you that info.

    Screenshot 2021-03-23 at 6.20.39 PM.png
     
    #6 Salamander_King, Mar 23, 2021
    Last edited: Mar 23, 2021
  7. Mendel Leisk

    Mendel Leisk Senior Member

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    Corolla 15” steel rim part no:

    42611-02471-SW

    Also, a 2” ABS end cap is a near perfect fit over the centre hub opening. It’s slightly loose, but if you push on some sort of rubber band first, it’ll be snug and secure. Sections cut from an old bicycle inner tube work good.
     
  8. prime grip

    prime grip Junior Member

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    For $135.00, can't beat this insurance policy. I know , having 4 flats with no spare.:eek: IMG_0823.jpeg IMG_0829.jpeg IMG_0832.jpeg
     
  9. Mendel Leisk

    Mendel Leisk Senior Member

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    Is that the Corolla rim? Looks like it. (y)
     
  10. bbqnosher

    bbqnosher Junior Member

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  11. prime grip

    prime grip Junior Member

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    I bought the rim and tire together at "American tire". No specs on the rim. I told them what i had ( 2021 prime ) and they set me up.
     
  12. aunsafe2015

    aunsafe2015 New Member

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    Do you folks keep the spare in your car 24/7, or only on road trips?
     
  13. Salamander_King

    Salamander_King Senior Member

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    I kept mine most of the time but removed it when I really needed to use both rear seats. Luckily, I almost never used rear seats and had the spare tire stored in the footwell wedged in between the front seat and folded rear seat with headrest removed as shown in the photo. This made easier storage without needing to invent a way to secure the tire. For trips around town, you can get by having the tire at home as long as you have ways to get the tire delivered to you in case of flat. And yes, having a spare tire would become more important when you are away from home on a road trip.

    upload_2021-3-28_16-31-11.png
     
  14. prime grip

    prime grip Junior Member

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    I keep mine in the back 24/7. I'm a little gun shy because of 4 flat tires without one . No more tows to the dealer for me .
     
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