What if the smartest motorcycles ever built were the ones almost nobody bought?

From a motorcycle with no front forks to a bike with a roof and seatbelts, these forgotten machines pushed motorcycle engineering in directions most manufacturers never dared to explore. Some introduced revolutionary transmissions, radical suspension systems, rotary engines, extreme aerodynamics, and even oval pistons.

In this video, we uncover 10 of the most unusual and forgotten motorcycles ever built — including the Honda Pacific Coast PC800, Aprilia Mana 850, Honda DN-01, BMW C1, BMW K1, Yamaha GTS1000, Suzuki RE5, Bimota Tesi 1D, Bimota V-Due 500, and the legendary Honda NR750.

These motorcycles may have failed commercially, but many of their ideas were decades ahead of their time.

Which one surprised you the most?

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