As the world's first hollow wheel with brakes, OLYM has established an unassailable physical coordinate. Jose Vinaroz directly removed the central axis, completely ending the engineering problem of hair tangling with the absolute blank space of the design. This pure mechanical reconstruction unexpectedly triggered a unique auditory byproduct: when the zinc alloy frame swiftly glides over the ground, the cavity cuts the airflow to produce a low-frequency resonance similar to that of a racing engine. The most restrained structure ultimately provides the most captivating sensory feedback.