What is a duolever front end?
In terms of large motorcycles, this won’t be the first time that a Duolever has been used - although arguably the most famous recent bike to use the system wasn’t a Honda but a BMW.
In 2004 BMW introduced duolever on the front of its first inline-four sports tourer - the K1200S. Duolever is an evolution of Norman Hossack’s double wishbone / parallelogram suspension, which is why its sometimes referred to as Hossack Suspension.
The idea itself has been around since Hossack modified a Honda XL500 in 1979. In the early 90’s he modified a BMW K100RS, and whilst it never really caught on in England, German engineers understood the idea instantly. Like the rear paralever, its geometrically a double wishbone system. As with telelever, in duolever the pivoting links and springs are not steered. But with duolever, the physical link from the handlebars to the suspension is radically different, involving a hinged link.
The front suspension is completely independent of the steering, with the two only being connected by the hinged link up top.