Honda GX-31 Trike

Discussion in 'Motorized Trikes' started by boyntonstu, May 1, 2008.

  1. boyntonstu

    boyntonstu Member

    This is my homebuilt trike.

    Powered by a Honda GX-31 4 stroke, it will go 29 MPH.

    Unusual, is the universal joint between the handlebars and the head.

    I can steer with my feet and move the handlebars around for rear-view adjustment.

    Also, lifting the handlebars allows for ease of getting on/off.

    See video here:


    Attached Files:

  2. thatsdax

    thatsdax Guest

    That is ...

    Awesome !! Very cool. and 29mph for a 31cc motor? That is hauling for sure. What is the total weight of that setup? Since you are such a low profile, you may consider getting a flag for that bike. Enjoy the ride....:grin:
  3. boyntonstu

    boyntonstu Member


    It is pretty light. I can lift it easily. Perhaps 35 pounds wet?

    Incumbents have less wind resistance and can go faster than uprights.

    For your enjoyment, you may want to see a few of my inventions:

    See my $100 elevator video here:

    And here:

    HBO:TV's Top 5! Sep. 9, 2007 - 'Curb Your Enthusiasm' (30 seconds)

    EZ-Reach Smoke Detector Battery Changer

    EZ-Reach Smoke Detector Battery Changer

    Homemake Trike and Coffee Roaster on TV

    Craftsman 10” upside down Radial Arm Saw.
    Last edited: May 1, 2008
  4. SirJakesus

    SirJakesus Guest

    Dude you're awesome!. Great to have somebody so creative visit our forums.
    What kind of drive train does that trike have. I'm assuming its chain driven with centrifugal clutch but cant tell from the pic or video. Very interesting to see that its front wheel pedal powered too. Very nice, you must be the envy of the neighborhood.
  5. boyntonstu

    boyntonstu Member

    This photo shows the friction drive. I modified the knurled surface to grooves.

    Very little tire scrapping.

    Notice the throttle on the left. Not on the handlebars.


    Attached Files:

  6. hlombard

    hlombard New Member

    Great bike! I want one. Can you show more detailed photo's? Specially on the front wheel drive.
  7. azbill

    azbill Active Member

    you sir... are an inventive genius !!!
    very kewl ride :)
  8. hlombard

    hlombard New Member

    Please !! Can you upload close-up photo's?? How did you do the rear wheels? Does the pedals not strike the frame when you tern?

  9. Mr.G

    Mr.G New Member

    I seem to have trouble using U tube or some of the others. Any chance of getting them posted on this site?