DIY Bike and Trike Plans



  • Gravity Bike racer - England, UK

    http://4.bp.blogspot.com/-0FcE4Hoos1...ebee_gb_ii.jpg
    John "Doc" Warner shares some photos of his modified bicycle for Gravity Bike competitions. Named "Hee-Bee GB II", Doc built the gravity bike for a competition this past May.

    What is a gravity bike?

    A modified bicycle with a frame that's low to the ground to reduce wind resistance and the center of gravity. It has narrow handlebars, no pedals or chains, front and back disc brakes, knee rests and long foot pegs so the rider stretches out horizontally.

    The goal is to descend steep downhill courses to reach insane speeds, often exceeding 90mph. This extreme sport has been gaining popularity worldwide for more than three decades and Gravity Bike races are held around the world.

    Competitors wear helmets (some races require full-face), leathers, speed suits, gloves, footwear, and elbow and knee pads. According to Doc, "It's a great sport, very cheap (to build and compete), fantastic fun, and very accessible to all abilities and ages. Perfect for DIY/home-builders. You can build a competitive bike for around £60/$100 (but) you can, of course, spend less, or much more.

    "This is my first Gravity Bike build. I made it earlier this year to enter the 2014 Penn House Gravity GP and finished second overall (Streamlined Buggy beat me by just over a second)."

    See more pictures of Doc's Gravity Bike in the builders gallery.
  • Recent Forum Posts

    darnthedog

    Re: the welders lens

    Thank you Lucas- Just goes to show I have yet to see every method there is to build a bicycle. That was some interesting sites with videos.

    darnthedog Today, 10:27 AM Go to last post
    bambuko

    Re: Started my build, a few pics

    Is the seat position fixed?
    I found, as my riding experience increased, that I needed to change seat angle and position to get things just right...

    bambuko Today, 10:26 AM Go to last post
    Twinkle

    Re: Looking for builder (can't do it myself)

    what Mr i means is please go into your account and adjust the setting to receive private messages.

    Twinkle Today, 10:25 AM Go to last post
    thuktun

    Re: Started my build, a few pics

    I only rode it about 5 kms so far. With the exception of getting going from a dead stop it rides great. I'll get better at that with practice. I had no

    thuktun Today, 09:45 AM Go to last post
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