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

    Radical Brad

    Re: Welding injuries to eyes

    I can attest to the amount of pain your were in!
    Getting the "flash" can happen from a reflection as well, so don't wear a light colored

    Radical Brad Yesterday, 08:39 PM Go to last post
    stormbird

    Re: Phyton Trike Project

    Go here :- http://archive.org/search.php?query=edgar%20k.%20atkins

    Download all the free bike plans.

    Look through them and

    stormbird Yesterday, 06:39 PM Go to last post
    Twinkle

    Re: Fantasy solar bike

    look at bmsbattery.com , tax about 15% on import.

    mid drives have more flexibility but if you break the chain you walk home , if you use

    Twinkle Yesterday, 05:21 PM Go to last post
    sandman

    Re: Welding injuries to eyes

    You dont say what helmet style you have, if it a variable shade self darkening one then as Em says start dark until your happy, also wind up the bright

    sandman Yesterday, 04:17 PM Go to last post
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