250 GTO wheels | FerrariChat

250 GTO wheels

Discussion in 'Vintage (thru 365 GTC4)' started by ag512bbi, Dec 19, 2019.

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  1. ag512bbi

    ag512bbi F1 Veteran
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    What size wheels did the 250 GTOs leave the factory with?
    Those cars today, do they have Borranis? Did they race with "spoke" wheels? Were they fragile?
    Someone please give me a quick lesson on this please.
     
  2. miurasv

    miurasv F1 World Champ

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    #2 miurasv, Dec 19, 2019
    Last edited: Dec 19, 2019
    1962/3 250 GTO S1.

    15 x 6L Borrani RW3711 Front.
    15 x 6.5L Borrani RW 3715 Rear.

    1964 250 GTO S2.

    15 x 6.5L Borrani RW3715 Front.
    15 x 7.5L Borrani RW3806 Rear.

    All spoked.
     
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  3. ag512bbi

    ag512bbi F1 Veteran
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    Interesting. Thank you.
    There was confusion regarding a Daytona with "GTO" wheels that I saw.
    This clears it up
     
  4. miurasv

    miurasv F1 World Champ

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    #4 miurasv, Dec 19, 2019
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    Other sources state the rear wheels of the 1964 S2 250 GTO were actually 15 x 7.5L Borrani RW 3808, NOT RW 3806.
     
  5. miurasv

    miurasv F1 World Champ

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    #5 miurasv, Dec 19, 2019
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    The Borrani website states the wheels for 250 GTO 1962-1964 are:

    6.00 x 15 RW 3690.

    6.00 x 15 RW 3711.

    6.50 x 15 RW 3715.

    6.50 x 15 RW 3801.

    7.50 x 15 RW 3808.

    The site is very confusing. It does not specify if they have painted or polished aluminium rims, although it shows a picture of a RW 3812 7.00 x 15 wheel, which is not for a 250 GTO, with a polished rim, for all sizes.
     
  6. miurasv

    miurasv F1 World Champ

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    The Bluemel/Pourret 250 GTO book states that as original equipment all 250 GTOs had Borrani wire wheels with 42mm Rudge hubs, with steel spokes and aluminium rims painted silver which featured chrome plated triple ear knock off retaining nuts.
     
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  7. DWR46

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    Steve: The Borrani website has so much stuff wrong! Please do not use it as a "fact" source. No GTO was ever built with either RW3690 or RW3801 wheels. Remember, the Borrani company of today is NOT the same company of the 1950-70 era. While they do try, they do not fully understand what they have of the old archives. If you think they have problems sorting out the older Ferrari's, just try them with the Maserati race cars!
     
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  8. miurasv

    miurasv F1 World Champ

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    #8 miurasv, Dec 19, 2019
    Last edited: Dec 19, 2019
    I appreciate you chiming in, Dyke, as I know others do, and not just to this thread, so thank you for your experienced contributions.

    I did wonder about the accuracy of the information on the Borrani web site, particularly the RW3690 and RW3801 references.

    As far as you are aware, Dyke, is the following info correct?

    1962/3 250 GTO S1.

    15 x 6L Borrani RW3711 Front.
    15 x 6.5L Borrani RW 3715 Rear.

    1964 250 GTO S2.

    15 x 6.5L Borrani RW3715 Front.
    15 x 7.5L Borrani RW3808 Rear.

    Also, I do see 250 GTOs with polished rims, so are they actually correct, or, as the Bluemel and Pourret book says, is it the case that they were all supplied as OE with silver painted aluminium rims?
     
  9. DWR46

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    Steve: Your wheel information in Post #8 is correct. This is actually not an easy question to answer, as the Factory Build Sheets for GTO's do NOT list wheel size or RW number. They only list the Dunlop tire sizes. I actually had to go look at the cars to make sure. My belief is the Series 1 cars were all built with the same wheels and the Series 2 cars were built with the later spec wheels, but these were race cars, and as soon as something new was available that made the car go faster, most GTO's would have been upgraded to the later wheel combination. As for finish, the wheels were painted from new, not polished. They were aluminum rims.
     
  10. ag512bbi

    ag512bbi F1 Veteran
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    and what does the "L" stand for?
     
  11. DWR46

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    Armen: Over time, tire and wheel manufacturers have established a series of tire bead and rim shapes that have been standardized throughout the industry. These rim shapes are listed by "letter". A "L" shaped rim is of a certain set of dimensions and curves. Some of our GTO wheels are also "K" wheels. I think you can google rim shapes to find more detail on these various wheel rim shapes.
     
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  13. miurasv

    miurasv F1 World Champ

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    #13 miurasv, Dec 23, 2019
    Last edited: Dec 23, 2019
    Dougal, please see post 7 above by Dyke regarding the 250 GTO never being built with RW3690 and RW3801 wheels.
     
  14. ag512bbi

    ag512bbi F1 Veteran
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    What comes with the Daytona then? Is the GTO's 15×7.5 the same as the Daytona's 15×7.5
     
  15. Edward 96GTS

    Edward 96GTS F1 Veteran
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    daytonas are stamped 4075
     
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  16. DWR46

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    The "offsets" are different. The two wheels are not interchangeable.
     
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  17. miurasv

    miurasv F1 World Champ

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    #17 miurasv, Dec 24, 2019
    Last edited: Dec 24, 2019
    ...and they look completely different. Correct Borranis on a 250 GTO are painted.

    Rear wheel on 1962 250 GTO 3869 which has been upsized to the 7.5L rim width Borrani RW3808.
    Image Unavailable, Please Login Image Unavailable, Please Login



    Daytona used Borrani RW 4075 below.

    Image Unavailable, Please Login
     
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  18. miurasv

    miurasv F1 World Champ

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    #18 miurasv, Dec 24, 2019
    Last edited: Dec 24, 2019
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  19. stevewak

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  20. miurasv

    miurasv F1 World Champ

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  21. miurasv

    miurasv F1 World Champ

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    250 GTO 4153GT has 15 x 7.5 RW 3808 wheels on the rear.
     
  22. ag512bbi

    ag512bbi F1 Veteran
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    Ok, To high jack my own thread, Where can I find 4 correct Daytona Borranis preferably in the USA?
    Would you recommend 15x7.5 all the way around or prefer 15x8 in the back?
     
  23. Edward 96GTS

    Edward 96GTS F1 Veteran
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    the best look is

    7.5 x 15 front
    8 x 15 rear
    but 7.5 all around is stock original.
     
  24. ag512bbi

    ag512bbi F1 Veteran
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    I actually have 15×8 all the way around on mine.
    I prefer that.
     
  25. Solid State

    Solid State F1 Veteran
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    Having to adjust spokes on motorcycles I couldn't imagine the pain in doing so on a car. Probably not of concern to the actual owner of one of these specimens though.
     

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