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Arachnid wheels vs the turbines

Discussion in 'Model S: Driving Dynamics' started by aikisteve, Oct 6, 2017.

  1. aikisteve

    aikisteve Member

    Joined:
    Feb 8, 2017
    Messages:
    28
    Location:
    Belgium
    Hi guys,

    I was fortunate enough to have enough referrals to get the Arachnid wheels from the referral program. Today I had them installed at the service center (they actually come with tires included, which is nice).
    Since they are supposed to give better performance, I thought the only thing that they could do, is be lighter. So with the kind help of the service team, I was able to measure the unsprung weight difference between the arachnids and the turbines and made a short video about it.



    If any of you guys know what this weight difference potentially mean in reality while driving or which "performance" effect I should be feeling, please let me know here or in the video comments. Would love to know what this weight difference could mean.

    Cheers,
    Steven
     
    • Like x 1
  2. The Duke

    The Duke Member

    Joined:
    Nov 17, 2016
    Messages:
    80
    Going to lighter wheels I noticed no difference in range. But I have not done any hardcore numbers. I did, however notice much better ride over bumps.

    Arachnids are so pretty!
     
  3. Xenoilphobe

    Xenoilphobe Active Member

    Joined:
    Jan 2, 2014
    Messages:
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    Location:
    Fairfax County Virginia
    Lighter wheels on a 5000 pound car just means a different lipstick. There might be a slight .01 speed benefit.

    It is a pretty lipstick though.
     
    • Helpful x 1
  4. bcampbelllds

    bcampbelllds Member

    Joined:
    Dec 19, 2015
    Messages:
    216
    Location:
    North Dallas, Texas
    The Arachnids weigh 51lbs and the stock cyclones are 59 lbs.
     
  5. bishoppeak

    bishoppeak Member

    Joined:
    Oct 3, 2015
    Messages:
    141
    Location:
    San Luis Obispo, CA
    Is that with the tires mounted? My math conversion from kilos shows turbines at 36 lbs and Arachnids at 28 lbs.
     
  6. aikisteve

    aikisteve Member

    Joined:
    Feb 8, 2017
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    Location:
    Belgium
    This was "dry weight", so without tires or balancing lead. Your math is about right, but those are the numbers for the rear wheels. The front ones are both a little bit lighter.
     
  7. Demetraki

    Demetraki Member

    Joined:
    Aug 1, 2017
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    14
    Location:
    Grand Island Florida
    I'm guessing the only way to get these wheels are from the referral program or used market?
     
  8. aikisteve

    aikisteve Member

    Joined:
    Feb 8, 2017
    Messages:
    28
    Location:
    Belgium
    Yes, for the moment that is true. I believe they were very briefly available in pre-order for a huge price, but then got cancelled. So, they are sort of limited edition for now :)
     
  9. DIL

    DIL Supporting Member

    Joined:
    Sep 13, 2013
    Messages:
    514
    Location:
    Danville, CA
    Reduces unsprung weight which improves handling quality
     

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