The D1 100 was equipped with a rotary disc valve engine and was made to be a workhorse. This engine was used for a long time ...

It's not a rotary, per se, but the internals do rotate. The engine. It's a testament to its initial design, as whether it's ...

In the RE prototype, the engine was exclusively used to charge the lithium-ion batteries when they were running low, and a 100-horsepower electric motor provided all of the propulsion.

The RE5 was well ahead of its time both in engineering and style, the rotary engine in a bike is a rare thing and Suzuki took the bull by the horns and made the RE5, they also added quirky touches ...