Bora, Ghibli & Khamsin

Discussion in 'Maserati' started by Longstone Tyres, Oct 5, 2017.

  1. Longstone Tyres

    Longstone Tyres Formula Junior
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    Though most of my books tend to suggest that all Ghibli's fitted 205VR15 tyres through out it's production, of which we know was the Cinturato CN72, which Pirelli are producing again. I pretty sure that the later Ghhibli's fitted 215/70VR15.

    Khamsin was 215/70VR15

    Bora was 215/70VR15, some cars had 205/70VR15 on the front to make the steering nicer.

    Do you know if these cars fitted Michelin XWX or Pirelli Cinturato CN12?
     
  2. Candide

    Candide Formula 3

    Apr 6, 2017
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    Later cars, both.
     
  3. Maserati Blue

    Maserati Blue Formula Junior

    Dec 13, 2010
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    Just for reference:

    Merak SS: Michelin XWX 195/70 R15 (front) and 215/70 R15 (rear)

    Early Meraks came with slightly smaller dimensions: 185/70 R15 (front) and 205/70 R15 (rear)

    Quattroporte III: Michelin XWX 225/70 R15 or Pirelli 225/70 R15
     
  4. Longstone Tyres

    Longstone Tyres Formula Junior
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  5. Maserati Blue

    Maserati Blue Formula Junior

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    Sorry, no idea about the Ghibli.
     
  6. hyenahf

    hyenahf Formula 3
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    May 25, 2004
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    bora xwx...
     
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  8. porkchopious

    porkchopious Formula Junior

    Oct 11, 2009
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    I had a 1967 Ghibli and had 215/70VR15s fitted and even if they were incorrect, they just looked so good on that particular car! The tread pattern of the Michelin XWX was oh, so, sexy!
     
  9. boralogist

    boralogist Formula Junior

    Jun 21, 2005
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    Yes XWX standard.
    With Pirelli available as a factory option on the Bora (at least on my 1972).

    Regards.
     
  10. Candide

    Candide Formula 3

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    #9 Candide, Oct 19, 2017
    Last edited: Oct 19, 2017
    According to the 1972 Ghibli Owner's Manual (no refs., but AM115 in white and AM115/49 in black on a green front cover), fittings were the followings :

    ----> 1972 = Pirelli Cinturato HS in 205VR15

    1972 ----> = Pirelli Cinturato HS in 215VR15.

    No Michelin or 70 profile mentionned.

    Same thing on the last re-stamped in 200 units original manual dated 1973.
     
  11. staatsof

    staatsof Four Time F1 World Champ
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    While everyone restates what they beleive to be the correct tires and sizes from either their owner's manual, a download of one or from Norbye's book on the Bora & Merak please understand that not everything in that book turned out to be 100% accurate and that small manufacturers like Maserati tended to buy parts at opportune times and then used whatever was on the shelf at the time of assembly. Hopefully they didn't lets tires sit around for a long time! :eek: But if one time Pirellis were a better deal than the same size Michelins I can see them switching. This is what makes them vary a bit on construction and undoubtedly turns concours judges into ignorant authoritarians at times. My Bora with 3,000 miles on it came with 215/70VR15 XWXs on it. Those tires had the same production code as the car, well sort of. Maserati lied about the last few Boras and claimed earlier production dates. My tires were all circa 1978. That was the last one off the assembly line. So it would not surprise me if some either came with the Pirellis or were requested that way. My 1970 Espada had the original spare which was I beleive was a Pirelli Cinturato HS 205 VR 15? There was no ratio specified at the time. It was more like an 80 series tire though. The owners manual states a rolling radius (load) of 13.33 inches. While that does seem to indicate that loaded that tire would be the same as the the XWX 215/70VR15 all I can say is that even worn out as my spare was that tire was quite a bit bigger in diameter than the ones on my Bora. Perhaps mine were 215VR15? Anyway it was huge! I have personal early owner confirmation of that from a Lamborghini 400GT owner who has had his car since the early 1980s. But I know that at least some later Espadas did come with the newer XWXs as well. I'm currently running an equivalent that's the same diameter as the 215/70VR15 XWX. Sadly it too is NLA ... :(

    Small manufacturers change things around a lot. An Espada came with either a single distributor, one on each cylinder bank or two on a single cylinder bank! Whatever they had at the time ...
     
  12. Candide

    Candide Formula 3

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    So, no matter in we fit Kumho tyres.
     
  13. Longstone Tyres

    Longstone Tyres Formula Junior
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    I just can't imagine why you would fit Khumo other than because it's cheap. However lets not get into that.

    the 72 date sort of ties in with my fitment guides, but it was a 70% profile tyre.

    I think both the early Ghibli and the Espada fitted 205Vr15 Pirelli Cinturato CN72 HS tyres (as did the 400GT, and to be honest nearly all the other big top Italian cars (and DB6 and DBS for that matter) between 1964 and 1968. In 68 when 70 profile tyres were invented they started moveing them over to 215/70VR15 XWX

    this is a massive bargain for people that want 215/70VR15 XWX https://www.longstonegomme.it/catalog/product/view/id/1925/s/set-of-4-215-70vr15-michelin-xwx/category/2490/ or https://www.longstonegomme.it/catalog/product/view/id/1926/s/set-of-5-215-70vr15-michelin-xwx/category/2490/

    this is a good picture

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  15. Candide

    Candide Formula 3

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    So, no matter in we fit Kumho tyres.
    Private joke, the Kumho.

    But since we have no official evidence, even in period test that XWX or 70 profiles were used...
     
  16. Candide

    Candide Formula 3

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    Very interesting pic however.
     
  17. Candide

    Candide Formula 3

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    Can we read the pic as :

    205/70 XWX on the leftn then Pirelli HS in 205 and on the right XWX in 215/70 ?

    A vey huge gap in circumference.
     
  18. Candide

    Candide Formula 3

    Apr 6, 2017
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    So, in your opinion, what should I fit on my 05/1970 SS ?

    I was to buy the XWX in 215/70.

    How can we make sure whether it had Michelin 70 or not ?
     
  19. Candide

    Candide Formula 3

    Apr 6, 2017
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    Finally, taking a closer look to my documents originally bought to the Factory I found the information, my car left the Factory w/ Michelin tyres :

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    I recommend you to buy the copies of all of your documents.
     
  20. Candide

    Candide Formula 3

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    However, Thx for your kind help...
     
  21. Longstone Tyres

    Longstone Tyres Formula Junior
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    yep that is correct
     
  22. Longstone Tyres

    Longstone Tyres Formula Junior
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    Maserati are tricky to find in fitment guides from this period. However these are from a Michelin 1971 and Pirelli 1972 fitment guides. and they are a bit spurious because both these tyre manufacturers had an axe to grind at this point because they are trying to sell 70% profile, hence offering the 70% profile options, and not being clear about cut off dates and changes. ( i hope you can read them)
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  23. Longstone Tyres

    Longstone Tyres Formula Junior
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    Then these 2 guides are independent:

    this one is an independent American fitment guide which i think is pretty honest.

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    then this one is from a 1977 insurance book i sometimes use. which i thinks lists the sizes as the sizes thatere fitted to cars that were for sale at the beginning of the year. in other words though where it states 1972 Ghibli as 205-15 I think that means that the Ghibli's that were for sale in the UK in January 1972 had 205-15 so arguably they might have changed to 215/70 in February 1972. & for t he sake of argument Maserati could have changed to 215/70 in October 1971, but there just weren't any in the UK yet.

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    Borrani also don't give any real clarity https://www.borrani.com/maserati-wheels/ghibli.html they list all the wheel options as the same years. it would have been nice if they had listed the 6.5" wheel and then said the 7" one came out in 1972, but it's never that clear.

    However all things considered you can have either from this web page https://www.longstonetyres.co.uk/classic-car-tyres/maserati/ghibli.html

    the other good news is that English web page also now have the special offer on sets of 215/70Vr115 XWX so you don't have to test your French any more.

    thiis is our new web site so please let us know if you stumble across any mistakes.
     
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