Chainless Digital Drive Bikes

Discussion in 'Hangar Talk' started by FastEddieB, Nov 29, 2022.

  1. FastEddieB

    FastEddieB Touchdown! Greaser!

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    This YouTube video was recommended to me:



    Chainless digital drive bikes are not something I was familiar with. Interesting tech, to be sure. Even with the drawbacks, I suspect it’s an emerging technology we’ll be seeing more of in the future.
     
  2. Sac Arrow

    Sac Arrow Touchdown! Greaser!

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    It's interesting, but the video does point out that there are large electrical losses associated with an electrical generation and drive system, as well as a weight penalty for the drive motor (and presumably the generator too.) You might regain some of that from regenerative braking, but then there is a battery, and yet another weight penalty.
     
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  3. SoonerAviator

    SoonerAviator Final Approach

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    Nothing like adding weight and new failure modes to the simplest of mechanical devices (chain/sprocket). Solution in search of a problem. Even the modern wireless derailleurs from Shimano/SRAM have limited utility and have to be recharged somewhat frequently depending on amount of use and volume of shifts.
     
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  4. GeorgeC

    GeorgeC Administrator Management Council Member

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  5. FastEddieB

    FastEddieB Touchdown! Greaser!

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    I can imagine a version of you a century ago: “Nothing like adding weight and new failure modes to the simplest of mechanical devices (horse/buggy).”
     
  6. schmookeeg

    schmookeeg En-Route PoA Supporter

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    Why is this a digital bicycle? Wouldn't it just be an electrical bicycle?
     
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  7. GaryM

    GaryM Pattern Altitude

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    Marketing!
     
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  8. TCABM

    TCABM En-Route

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    Can’t you see…it’s an intuitive change.
     
  9. GeorgeC

    GeorgeC Administrator Management Council Member

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    Have you tried riding a bike without using your fingers?
     
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  10. asicer

    asicer Final Approach

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  11. GeorgeC

    GeorgeC Administrator Management Council Member

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    Yes, similar to that.
     
  12. kgruber

    kgruber En-Route

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    50% efficiency?

    That'll go nowhere fast!
     
  13. schmookeeg

    schmookeeg En-Route PoA Supporter

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    [​IMG]

    Nicely done. :D
     
  14. PPC1052

    PPC1052 Final Approach

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    The difference is that on the digital drive bike by pedaling you are turning a generator to create electricity to power the electric motor, whereas with an electric bicycle there is a battery that provides the electricity to power the motor, and any pedaling by the rider is adding additional force mechanically.
     
  15. SoonerAviator

    SoonerAviator Final Approach

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    Well, horses have plenty of failure modes and extra weight, lol.
     
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  16. EdFred

    EdFred Taxi to Parking

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    So this device will allow for sustained average speeds of three times faster than a regular bicycle? Nice!
     
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  17. nauga

    nauga Administrator Management Council Member PoA Technical Administrator

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    My bikes have a digital display. I use it often to alert cars and pedestrians. It's also useful in my car.

    Nauga,
    with built-in redundancy
     
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  18. IK04

    IK04 En-Route PoA Supporter

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    If you stick digits into the spokes of a spinning wheel, you get a cool sound.

    Kids, don't try this at home...
     
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