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For Sale 348/F355 Challenge original Speedline SL886 magnesium wheels

Discussion in 'Ferrari Parts & Collectibles' started by Kasimir, May 14, 2025.

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  1. ShineKen

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    #26 ShineKen, Jun 5, 2025

    Can you confirm the front and rear offsets of your wheels?
     
  2. Kasimir

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    #27 Kasimir, Jun 6, 2025
    We're going to measure them to be absolutely sure, because from what I've looked up there can be variations. Will let you know ASAP.
     
  3. Kasimir

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    #28 Kasimir, Jun 9, 2025 at 7:54 AM
    Verified, offsets are as follows: 8J X 18 ET 49 mm front, 10J X 18 ET 77.9 mm rear with a bolt pattern of 108 X 5H.
     
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  4. ShineKen

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    #29 ShineKen, Jun 9, 2025 at 1:32 PM
    Confirmed by measuring or looking at the specs on the wheel?
     
  5. ChoonHound

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    #30 ChoonHound, Jun 9, 2025 at 3:01 PM
    Well, there is no way a dude in his garage with basic hand tools would measure offset to that level of precision. And if he did he would likely round up. My guess: he guessed. But let’s see.
     
  6. Kasimir

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    #31 Kasimir, Jun 10, 2025 at 3:16 AM
    Specs on the wheel.
     
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  7. ShineKen

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    #32 ShineKen, Jun 10, 2025 at 4:38 AM
    Pics of the rears on a car or pics of the spec markings?
     
  8. ShineKen

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    #33 ShineKen, Jun 10, 2025 at 5:58 AM
    Most challenge wheels these days are sized 18 x 10 +68 (10mm more aggressive). An 18 x 10 +78 is actually rare and I suspect an early iteration. It would be same size as standard 355 wheels.
     
  9. Kasimir

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    #34 Kasimir, Jun 11, 2025 at 5:34 AM
    I will try to get some pics, and perhaps they have the tools to do proper measurements and then I can include those as well.
     
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