Underbone

An underbone is a type of motorcycle that features a unique step-over frame design where the engine is positioned beneath the rider, between their feet, but without a platform for the rider’s feet.

Design: Underbones have an open frame structure with the engine mounted below the main frame. They often have a manual transmission.
Usage: Commonly used in Southeast Asia and South Asia for daily commuting and long-distance travel.
Engine Size: Usually ranges from 100cc to 150cc.