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Abstract

The invention discloses an Axially Decoupled Crank Arm (ADCA) that revolutionizes cycling ergonomics by redistributing torque requirements throughout the pedal stroke. This innovative crank assembly system comprises a spindle, an arm, and a tube geometry component with helical fluting, enabling partial decoupling of rotational motion. As the cyclist pedals, the arm rotation causes lateral movement of the tube geometry component, reducing torque demands at the pedal's top and bottom positions. Compression springs counter lateral movement, providing resistance and converting kinetic energy to potential energy. The ADCA offers customizable decoupling levels, compatibility with various bottom bracket configurations, and the ability to accommodate different pedal styles. Additionally, a locking mechanism allows cyclists to switch between decoupled and coupled modes for versatile riding experiences. With its transformative design, the ADCA enhances cycling performance, enabling smoother transitions and improved efficiency for riders across diverse terrains

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First Claim