DT Discovery TimelineThe connected virtual museum

Motorcycle museum record

YA-1

Yamaha Motor’s first motorcycle arrived with elegant styling, low weight and an immediate competition programme that helped establish the new company’s credibility.

Yamahamanufacturer
classiccategory
125 ccengine capacity
Air-cooled two-stroke singleengine

Museum plaque

Why this bike belongs here.

The object that marks the birth of Yamaha Motor and its racing-led motorcycle identity.

Yamaha Motor’s first motorcycle arrived with elegant styling, low weight and an immediate competition programme that helped establish the new company’s credibility.

Why it matters. The object that marks the birth of Yamaha Motor and its racing-led motorcycle identity.

Technical identity

The engineering at a glance.

This first expansion records museum-level specifications rather than pretending every year and market used one immutable specification.

EngineAir-cooled two-stroke single
Capacity125 cc
Production era1955–1958
CategoryClassic
TransmissionAdd by variant/year
Final driveAdd by variant/year

Research starting point

Built to improve, not freeze.

Model-year specifications can vary. The museum keeps the stable historical interpretation here and leaves room to add exact variants, racing derivatives, engine codes and source-specific specifications later.

Yamaha source / heritage starting point
Open source ↗