The Ultimate Citi Bike

This is the future and the city’s business district frowns upon those who bring their cars to work. The alternate arrangement is to leave your car at a distant parking lot and cycle your way to work. Why? Overpopulation has taken its toll on the city and this is a plausible solution. In comes the Ford Citi Bike, one that is designed for easy mounting and holding gadgets like laptops and iPad.

Its shape came from a user friendly perspective where the owner wont have to lift their legs up high to mount-dismount the bike, this way makes it easy to ride it with whatever kind of clothing. The mechanism of the bike consists in gears, and dented bands for traction, and torsion bars for steering.

Designed for Ford, inspired by the Ford Focus ST 2013
Assisted by: Ricardo Casillas and Manuel Serrania

Designers: Jimena Compean, Isabel Ayala and Jose Arturo Moreno

    17 Comments

    • IT Rush says:

      This must be light and comfy, how thin is it? How much?

    • Jason says:

      Great idea for urban cycling

    • DerDirk says:

      Steering?

    • Paul says:

      What about steering? This thing does not look functional at all

    • windlong says:

      Can’t steering.it’s important.

    • This is only a model, its non functional, but the mechanical part we did solve as part of the project.
      The way it would work would be:
      on the body of the bike there is a mark, that indicates ( or simulates) where the piece would spin, that piece would spin with an axis and controlled by torsion bars.
      any doubts feel free to ask ill be more than happy to answer them
      thanks!

    • hanson says:

      Is there any good reason for this to be hubless?

    • Chris says:

      It’s good looking but I don’t see how that would work. Wouldn’t the weight of a person shift the frame downward? Or if the joints at the intersection of the wheels and frame can hold the weight, the how would the wheel rotate?

    • PH says:

      ah….ok I got it.
      A bike that never turns
      A bike that always go straight.

    • Schmogo says:

      Why reinvent the wheel? Wheels with hubs work. Wheels without hubs, while they seem to dominate designs like this, do not work.

      This invisible “torsion bar” steering? Hard to see that as improving anything either.

      It’s a pretty object, but not an improvement on anything that already exists.

    • Schmogo says:

      So, the steering pivots? It’s not very safe if it doesn’t “self-center” and that geometry would seem to indicate the opposite.

      Please answer this… Why hub-less wheels? I’ve never seen any indication that there are any advantages (even if someone were able to make them work at all).

    • Fausto says:

      The look of the design is attractive and has intriguing symmetry. But… Have any of you ever ridden a bike? At slow speeds the front wheel needs to steer 10, 30 or more degrees without resistance (i.e. without having to fight torsion bars). In a normal bike, the resistive force generated in the steer against the road “rights” the bike (i.e saves your fall). Pivoting the wheel parallel to the ground will cause the bike to pitch forward while generating a force into the fall causing the cyclist to fall (pitch over). I would like to see the hubless wheels work, but at least two points are needed to support the rim while a third point provides the drive. If you use eliminate one of the support points to support the rim and rely on the drive point to do so, there will be extreme resistance (friction) to the drive mechanism and the pedaling efficiency will be very low. I am not sure how the handlebars are adjusted, but you can’t expect every cyclist to require the same handlebar height. There is a lot an engineer could do with the hubless bottom bracket/drive mechanism and the volume provided in the lower section, but the bearings needed to support the lateral forces generated by the legs would be big and probably heavy. Try to think how the added weight (strength) needed to support the wheels and pedals would be justified.

    • mommus says:

      How does this even count as a successful ‘design’ if you can’t go around corners?

      Eliminating steering just for the sake of aesthetics is like removing wings from an aircraft to make it look sleeker!

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