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Spline Wheel Tire Application

Discussion in 'Boxers/TR/M' started by ostkurve, Jan 5, 2014.

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  1. ostkurve

    ostkurve Karting

    Jan 16, 2006
    119
    Los Angeles,CA
    Full Name:
    Chris
    #1 ostkurve, Jan 5, 2014
    I have seen Testarossa's with spline wheels fitted with Michelin TRX tires & other cars fitted Goodyear tires.

    Were tires an option to the purchaser?
     
  2. ozziindaus

    ozziindaus F1 Veteran

    Aug 16, 2012
    9,799
    Detroit
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    Sam
    #2 ozziindaus, Jan 5, 2014
    Last edited by a moderator: Sep 7, 2017
    I believe the TRX were on EU applications, Goodyear Eagle VR50 on US. Just a guess.
    Surprisingly, I have and '87 with the original tires installed in 2001. I had no idea they were even available then. No dry rot, cracking or any signs of deterioration. 90% tread to boot.
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  3. curtisc63

    curtisc63 Formula 3
    Owner

    Dec 13, 2005
    2,290
    Maryland
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    Curtis Campbell
    #3 curtisc63, Jan 5, 2014
    It depends on year. Some came with the TRX metric size tires and then changed over to standard 16" wheels. It is by far preferred to have the 16" wheels as at least there are a couple reasonably priced options for tires. If you have the metric size you are limited to buying from Coker or some such specialty supplier.
     
  4. KatMan

    KatMan Formula Junior
    Silver Subscribed

    Apr 2, 2006
    498
    Silicon Valley
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    Stan K
    #4 KatMan, Jan 5, 2014
    All 85's (including US models) had TRX tires. Early 86 US models also had the TRX tires. Sometime in 1986, the US models switched over to the 16" size. In fact at that point I believe all future TR's (worldwide) went to the 16 in" tires.
     
  5. MonoSpecchio

    MonoSpecchio Formula Junior

    Dec 7, 2006
    421
    SoCal in the IE
    #5 MonoSpecchio, Jan 6, 2014
    ^^^This is correct from my research. I don't think you could order or request TRX or 16", it was a running change. My '85 US model had the TRXs...the front tires were the TRX GT tires (same ones sold for BMW TRXs) and in excellent shape, but the date code was 1999, so I switched to 16" wheels from a 1987 TR. I keep the TRX wheels/tires in case Testarossas become valuable and originality is more important. Sam, you may be aware tires can deteriorate inside while appearing great outside. I wouldn't drive too aggressively on 12 year old tires.

    The BFG Sport Comp 2 are pretty much your only street tire option for the 16" wheels, but they are very good and reasonably priced.
     
  6. okiedude

    okiedude Formula 3

    Jul 11, 2011
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    Remulak
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    Blake
    #6 okiedude, Jan 6, 2014
    Yes, as determined in the thread a few weeks ago. Until Toyo makes a new run of the 888's.
     
  7. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
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    Terry H Phillips
    #7 tazandjan, Jan 6, 2014
    The TRX wheels and tires were a logical, but unfortunate, follow-on from the BBi, which came with TRX tires, too.
     
  8. Longstone Tyres

    Longstone Tyres Formula 3
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    Dougal
    #8 Longstone Tyres, Jan 9, 2014
    Last edited by a moderator: Sep 7, 2017
  9. Melvok

    Melvok F1 World Champ
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    Jul 25, 2008
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    Amersfoort, The Netherlands, Europe.
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    Mel
    #9 Melvok, Jan 9, 2014
    I have these Michelin Pilot Sport 2 tires also on my 512TR ... and very much like them ! :)
     

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