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The motor, known as the clutch-type electrical driving device is embedded inside the tube in order to reach optimum bike design. The bike has been adapted to fit the tube motor and to look like a regular bike at the same time. The tube motor is a mid-drive motor; it is positioned at the bottom bracket axial, which combines with the regular bike motion to form a complete derailleur system. The motor is easy to install and remove; it also provides a more even weight distribution compared to traditional hub motors.
Honlin Heavy Industries Co., Ltd.
National Taiwan University of Science and Technology
Yung-Sung Huang,Prof.Yeng-Horng Perng