Sada Bike 摺疊單車 by Gianluca Sada is a highly esteemed winner of the very prestigious 2020 A' Design Award 金獎 in 車輛、出行及交通運輸設計 Competition Category.

金車輛· 2020

Sada Bike 摺疊單車

by Gianluca Sada

Client: Adler Group

A' Design Award 金獎 Winner in 車輛 Category

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Verified Award Winner

Verify Award Status for #100285

Visit Site View at A' Design Award Press Release Award Badge

Colors

The Design

About Sada Bike 摺疊單車

Sada Bike係一款採用26吋車輪嘅無轂摺疊單車。大車輪令騎乘姿勢舒適，同標準單車相近。每個車輪由三個支點固定：前支點設喺擋泥板結構之中，後支點就位於輪圈內側。鏈條將動力傳送至下方嘅小輪，再將扭力傳遞到後輪圈。車架圍繞單一中央支點轉動，令整個結構只需一個動作就可以摺合成接近雨傘大小嘅形狀。摺疊後嘅單車可以孭喺膊頭上，亦可以好似手推車噉拖行。

The Recognition

About the A' Design Award 金獎

Sada Bike 摺疊單車是 A' Design Award 金獎得主，這是授予一流、絕妙而傑出設計的極為崇高的認可。金獎得主是極具創新、極富遠見且璀璨奪目的創作，反映出其設計師的天才、智慧與才幹。預計Sada Bike 摺疊單車將成為一項備受讚譽、引領潮流、氣勢恢宏的發明，帶來前所未有的價值。這件贏得 A' Design Award 金獎的設計是一個壯觀而受人敬重的項目，極大地造福並拓展藝術、科學、設計和技術的界限。Sada Bike 摺疊單車激起強烈的渴望，喚起激情，鼓勵創造力，令我們著迷。

Behind the Design

Press Kit

Credits, team members and technical details provided by the designer.

Unique Properties: The SadaBike have 5 strategic points:
1) Hubless bike.
This means: Innovative Design and very good ergonomics and comfort.
2) Hubless and foldable bike:
It has a special fulcrum in the center, all the frame folds, into a compact shape, similar to an umbrella.
3) Foldable with a single movement.
4) Portable on Shoulder:
The small size has the advantage of carrying the bike on the shoulder.
5) Portable as a Trolley:
The backpack presents a central hinge that allows the expansion in the trolley mode.
Dimensions & Packaging: Sada Bike measurements:

In «open version» Sada Bike is like a «normal» 26 inch bike: 1640mm; 980mm; 530mm

The dimension of only the frame, is like an umbrella and included rims, overall measurements are: 700mm; 600mm; 280mm
Tags: Hubless, Foldable, Trolley, Umbrella Bike
Production Technology: The parts of this bike are in aluminum alloy (7075 Ergal) made by CNC process. The next prototype and the production will be made in Ergal and carbon fiber.
Design Challenge: The bicycle without spokes was a challenge between innovation and design. The search for the perfect circle and the study of the laws of physics, yet the commitment, perseverance, with a certain amount of obstacles and falls have made it possible to operate the circle without rays, without constraint to the hub .. and again ... the search of technical and industrial partner, led me to finalize an essential design with extreme innovation.
Research: The result of the project is a 26 inch foldable bicycle with a minimum size when folded (the frame dimension is barely the size of an umbrella) for hand-transport.
Sada Bike, despite the sizes of its wheels and the total absence of hubs and spokes, when folded, is the lightest and least cumbersome foldable bike on the market as it can be transported in an elegant trolley. Other foldable bikes have tiny wheels and frame enhancing manageability at the expense of stability and safety.
Inspiration: Demanding mobility-related service has its consequences on society: street congestion of metropolitan hubs is the everyday challenge commuters have to face and it is a source and stress and delays.
«You never change things by fighting against the existing reality. To change something, build a new model that makes the old model obsolete.» R.Buckminster Fuller
Promoting and enabling virtuous behaviors for smart mobility, intermodality, sustainability for the environment are the values driving Sada Bike
Project Duration: The main exhibitions are:
SMAU Torino (Torino Italy 05/2014); Napoli Bike Festival (Napoli Italy 09/2014); Forum del Design (Milano Italy 10/2014); TEDx Bologna (Bologna Italy 10/2014); Bike to the future: Design Museum Gent (Belgium 10/2016), Bloomfield Science Museum (Jerusalem Israel 05/2017), Universum Bremen (Germany 04/2018), Citta della Scienza (Napoli Italy 4/2019), Science and Technology Museum (Ottawa Canada 04/2020), Franklin Institute (Philadelphia USA 04/2021).
Operation Flow: The frame is composed mainly of 4 parts similar to a scissor front and a rear. Each wheel is supported in 3 points: the front ones are inserted in the fender structure, while the rear ones are allocated inside the rim.
The bending system has a central fulcrum around which the front and rear parts of the structure and allows it to close the whole frame in a very compact way.
The Sada Bike has a change in the lower wheel that transmits the motion, which allows multiplying the speed of 3 times. The chain then transmits the motion to the lower wheel that transfers torque to the rear rim.
Patents: Patented No. PCT EP2011 878
Italy EP2509854A1, Europe EP2509854B1, USA US20120319377

1st Classified for: Idea TO; The best innovative thesis 2010
Thesis awarded at 55 Congress of order of Engineers of Italy

Project selected for 200 Young talent of Italy
Event held by the Minister of Youth, Rome 17-20 November 2010
Team Members: Inventor and Designer: Ing. Gianluca Sada
Product Development Manager: Luca Scudieri
Image Credits: Image Frozen Light studio