Lidija Grozdanic

Hubless Sada Bike Can Be Folded to the Size of an Umbrella

by , 05/07/14

Sada Bycicle, foldable bicycle design, foldable bikes, space-saving bicycles, bicycle design, portable bicycle, transformable bicycle, green transportation, city bike design, cycling trends, green design

Foldable bikes have been around for some time, but Sada Bycicle pushes the limits of space-saving design by folding to the size of an umbrella. This hubless bike features a frame that folds away for maximum portability – it can even be packed in a regular-sized backpack!



Sada Bycicle, foldable bicycle design, foldable bikes, space-saving bicycles, bicycle design, portable bicycle, transformable bicycle, green transportation, city bike design, cycling trends, green design

The Sada Bike has a standard bicycle dimension with 26-inch wheels that are attached to the frame using an anchoring system. The entire structure can be folded with a single movement and packed in a container that can also be used as a backpack.

Related: The Cool and Compact HaseBike Folding Bicycle Is Perfect for Urban Commuters

The design focuses on the bike’s space-saving advantages. Unlike most bikes, which usually get their strength from the tension in the spokes, the strength of the Sada Bicycle is put into the rim. This adds weight to the outside wheel, which can become a performance issue. However, the prototype is currently designed as a model for the city. The designer is seeking funding in order to further develop the design, which could allow him to tackle the weight issue and manufacture a model that combines light-weight bicycle design with high performance.

+ The Sada Bicycle

Via Gizmodo

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8 Comments

  1. Mohammed Houdaifah May 24, 2014 at 12:56 pm

    The wheels cant be folded .. check the video .. http://www.youtube.com/watch?v=WIVeemZ0_e4

  2. Ken Scheble May 9, 2014 at 10:27 am

    What about air in the tires? Awesome idea Btw

  3. Adrianne Hemenway May 8, 2014 at 7:03 am

    I was hoping to see a video of someone folding it, but looking at the picture where the bike is next to the umbrella, the wheels are off

  4. Rüby Psiberzerker May 6, 2014 at 2:09 pm

    What about the wheels? Rigid hubs don’t fold so well. The FRAME compacts to the size of an umbrella, and can be carried in a backpack.

  5. Hugh Trenchard May 6, 2014 at 12:30 am

    Intuitively, it also appears the forces on the front wheel will throw the front wheel out with the current roller assembly. I’m sure it’s been tested, but it seems like the rear roller setup will be stronger and more stable, and perhaps a similar roller system on the front would improve stability. That would make the front assembly longer and heavier, but presumably it could still be foldable.

  6. Hugh Trenchard May 6, 2014 at 12:26 am

    It occurs to me that one problem will be that when cornering the housing for the lower roller in the rear wheel may scrape the ground. It seems this might be solved by increasing the diameter of the lower roller somewhat.

  7. Aaron Knight May 5, 2014 at 6:12 pm

    That’s pretty cool. I’d like to see bikes designed to mount better to roof racks.

  8. Tony Slusser May 5, 2014 at 11:53 am

    This is certainly an interesting design, but I’m sure this provides more problems than it solves… A bicycle is no use if it is broken, and this thing looks like it wouldn’t be all that reliable…

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