According to Yamaha...
Yamaha DNA OF THE "WORLD'S FIRST" THE DRIVING FORCE IN EBIKES FOR OVER 2 DECADES
Yamaha invented the world’s first electrically power-assisted bicycle (PAS) in 1993.
Since then we have been constantly innovating to deliver the most easy-to-use power assist systems. Just one ride and you’ll understand.
Over 4 Million Drive Units used worldwide
Over 2 Million Yamaha e-bikes sold in Japan
It’s with excitement and great anticipation that our Yamaha Power Assist Bicycles will become available to US outdoor enthusiasts looking for new adventure and excitement.
Yamaha Power Assist Bicycles provide superior e-bike technology, reliability, and PURE RIDE performance.
1989 Yamaha created first prototype in 1989.
1993 Sales of the world-first PAS bicycle began in 1993 in Japan. The concept of an electrically power-assisted bicycle would later spread worldwide.
1995 A detachable nickel-cadmium battery was adopted along with a new charger with a refresh-charge function.
1999 Intelligent Flexible Energy System (IFES) was developed. This enabled data exchange between the battery, charger, and controller.
2003 Lightweight, compact center-mounted drive unit with an efficient direct-to-chain assist was developed. Non-contact torque sensor was developed to lighten pedaling when the battery is empty.
2008 Along with the introduction of our Brace model, we reached our 1 million bicycles sold.
Creation of our Brace model was a response to consumers asking for sportier recreation bicycle with Yamaha PAS technology.
2013 The Triple Sensor System was introduced to the all-new PW series, providing a smoother and more enjoyable ride.
The increased precision of the assist control results in the most “natural and organic” pedaling feel available in ebike technology today.
2015 New Concept YPJ-R lightweight road bike was introduced in Japan.
2016 Along with the introduction of our YPJ-C model in Japan, we reached our 2 million bicycles sold.