Monday, January 23, 2017

Porsche Bike S fork assembly

Even though I'm now on to the Porsche Bike X project, I frequently get questions about my last project, the Porsche Bike S.

I have a scan of the factory Porsche Bike S manual if anyone would like a digital copy, just email me.

I have refurbished the front shocks before and can help explain the process and where to orders parts if needed. My biggest advice is, don't wait until you HAVE TO rebuild the shocks. Once the elastomers break down, the fork is much harder to clean out and rebuild. Refurbish your forks every few years. It's fun and will be a lot easier!

Here are a couple images from the manual.



6 comments:

  1. hi Jim, does the rear suspension also need refurbishing?

    ReplyDelete
  2. Hi Hans, the Bike S doesn't have rear suspension. You're likely referring to the Bike FS. If so, I've seen it frequently with the Risse Astro-5 rear damper. This is a very cool piece of technology. It's adjustable for soft downhills and can be set stiff for uphills.

    Here is the web address for the product detail:
    https://www.risseracing.com/airshocks_astro_5.shtml

    And the PDF instructions for the damper:
    https://www.risseracing.com/technical/pdf_files/Astro-5.pdf

    And a video showing some Risse Astro-5 maintenance work:
    https://youtu.be/r7phihNMQxk

    And lastly, a helpful general video on mountain bike rear suspension:
    https://youtu.be/HgnOYZYP7H4

    To answer your question, yes they do need refurbishing. Particularly on these nearly 20 year old bikes. I'd recommend having a bike shop refurbish unless you're well-versed on bike repair.

    Good luck and let me know how it goes!

    ReplyDelete
  3. Hi Jim,
    I live in Belgium and I am restoring a Bike S from 1999 that sat in my parents' garage for about 15 years. The front fork is very dry and stiff and definitely needs refurbishing. I came across your blog when searching for information on the bike and love to see your passion :)
    Could I please kindly ask you to send me the scan of the user manual? Any advice on how I should proceed?
    Many thanks

    ReplyDelete
    Replies
    1. Hi Jim! Last week I rescued a Porsche bike S from scrapyard! Not kidding. I took it home and now want to fix the bike... didn't ride that much i think, but left in a garage for some years... Still got the original Sachs group on it... i think everything is original on the bike. bought once, and never got really used i think. more for gimmick. Can you please send me the manual of the bike and fork please. would help me a lot. ben.dolezal@telenet.be is my adress. THANX!!!

      Delete

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