Two noob questions

Discussion in 'Motorized Bicycle General Discussion' started by gobigkahuna, Apr 28, 2011.

  1. gobigkahuna

    gobigkahuna New Member

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    I've got two questions that I've not found answers to so far, so I thought I'd ask. I'm new at m-bikes so please excuse me if they've already been answered:

    1. Since vibration is a problem for most (all) m-bikes, why aren't vibration absorbing shock mounts used? Even something as simple as a thin sheet of high density rubber between the motor mount and the frame should reduce some of the vibration, but I haven't seen anyone do this. How come?

    2. Has anyone added a rear seat on their bike? Something like a child carrier, except intended for a (smaller sized) adult? I see them in photos of vintage bikes but haven't seen them in more modern versions. Is it because modern bikes can't carry the additional load? Or a safety issue?

    Thanks! :)
     
  2. NunyaBidness

    NunyaBidness Active Member

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    First question has been discussed MANY time here, I'm very surprised those threads didn't show up on a search. Maybe one of our resident search gurus will post some links for you on your first question.

    As to your second question, I seem to recall someone put something like a rack mount on a bike and added padding to it for carrying a passenger. I do not remember how it worked if at all as it was a long time ago.
     
  3. gobigkahuna

    gobigkahuna New Member

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    I'm not surprised #1's been discussed before, I just couldn't find it. The search function doesn't allow multiple word searches, so a search for "shock mount" results in hundreds of hits for "shock" and "mount". Or maybe I'm just not using the search feature properly?
     
  4. fm2200

    fm2200 New Member

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    What happened to the right to post?
     
  5. camlifter

    camlifter Active Member

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    http://motorbicycling.com/f6/rubber-not-27364.html
    you have the right to remain silent, if you refuse that right, everything you post can and will be used agagainst you in a court of public opinion.
    you have the right to a moderator, if you can not afford one, one will be apointed to you. do you understand these rights. cuff i'm danno.
     
  6. 2door

    2door Moderator
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    Just to simplify what you'll find in a search: No rubber or resilient mounts. Mount the engine solidly to the bike frame.

    To explain; you can not eliminate the vibration produced by the engine. By soft mounting all you'll accomplish is transfering those vibrations to the engine mounts and their fasteners. Live with that little buzz in your buns. It tells you the engine is running.
    Tom
     
  7. gobigkahuna

    gobigkahuna New Member

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    Thanks, no shock absorbers, got it.

    Back to my other question: Anyone remember seeing any posts or photos of a second, rear seat I might be able to look at for ideas?
     
  8. FileStyle

    FileStyle New Member

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    use leather (belt) between the motor and frame, reduces vibes! and still provides a solid mount.
     
  9. 2door

    2door Moderator
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    How much weight are you looking to add in the way of a rider? If you're a lightweight then you should be fine with a child back there but two full sized adults might be a bit of a strain for a stock 2 stroke. You could use a larger rear sprocket. That will impact your top speed but make it easier to carry the additional weight.

    Have you considered a banana seat, like the old Stingrays had? They still sell them. Sorry I don't have a link handy. A banana seat with foot pegs would haul a kid.
    Tom
     
  10. gobigkahuna

    gobigkahuna New Member

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    Probably not a good idea, but it was just a thought.
     

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