We have tested hundreds of motorcycles at Ultimate Motorcycling, and it is rare that we test something that is inarguably revolutionary and revelatory. The 2019 Yamaha Niken GT fits that bill. Yes, it is polarizing, as it disrupts our ideas of what a motorcycle is and should be. However, the proof of concept is in the riding, and that is what we did—we rode it.

1. The 2019 Yamaha Niken GT is best described as a motorcycle with two front wheels. While you can call it a trike or a three-wheeler, that discounts the primary motivator of the Niken GT—it leans like a motorcycle, rather than staying upright as we expect from a three-wheeled vehicle. Because it leans into turns, has a handlebar, and traditional seating, we consider the Niken GT to be fully a motorcycle—one that just happens to have two front wheels steering it.
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https://ultimatemotorcycling.com/2019/03/27/2019-yamaha-niken-gt-review-21-fast-facts/