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The A-Z of Classic Vintage Motorcycles

Discussion in 'General Classic Motorcycle Discussion' started by YukoNorton, Dec 14, 2017.

  1. YukoNorton

    YukoNorton

    Joined:
    Sep 3, 2017
    The A-Z of Motorcycles
    The virtual encyclopaedia of motorcycles? The virtual Tragatsch? The virtual museum of motorcycles? This is just an honest attempt at a listing of all motorcycles to share with all motorcyclists...

    Lots of interesting history here - learn about thousands of different bikes - just click on any letter of the alphabet.
    Hope it brings back some great memories!

    http://www.ozebook.com/a-z.htm
     
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  2. YukoNorton

    YukoNorton

    Joined:
    Sep 3, 2017
    To complement the A-Z history of motorcycles (link above), this may be helpful:

    Classic Cycle Technical Resources. Link to European models: http://www.classiccycles.org/1978/index.html

    Vintage Brochures, Owner's Manuals, Parts Diagrams and Technical Service Manuals for Classic Motorcycles and Automobiles.
    Easy to download motorcycle parts and service repair manuals.
    Classic motorcycle and automobile ads and brochures from around the world.
     
  3. acotrel

    acotrel

    Joined:
    Jun 30, 2012
    I was looking at the photo of the AJS 7R 3A. I often wondered why it had two exhaust valves instead of two inlet valves. I think that is the bike Rod Coleman raced successfully back then.
     
  4. oldbeezer

    oldbeezer VIP MEMBER

    Joined:
    Nov 2, 2017
    It is my understanding the reason for 2 exhaust valve is due to the metallurgy of the time. Heat was/is a great enemy of valve springs. By using 2 exhaust valves the springs would be stressed less and they would last longer. It wasn't for performance rather for durability.
     

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