During the 39th Tokyo Motor Show 2005, Honda Motor Co., Ltd. introduced a large-size sports motorcycle concept model called DN-01*. It was equipped with a continuously variable automatic transmission and a water-cooled, 4-stroke, OHC, V-type, 2-cylinder, 680cc engine.
The DN-01 is being developed in the concept of a comfortable sports cruiser, with the goal of creating new value for the customer by proposing a new level of riding pleasure. The newly adopted hydraulic mechanical continuously variable HFT (Human Fitting Transmission) system features two types of full automatic modes as well as a 6-speed manual mode which the rider operates through buttons located on the handle. Moreover, this is the first hydraulic mechanical continuously variable transmission system in the world to be equipped with a lock-up mechanism, which improves the fuel efficiency while offering a smooth ride without feeling the shock normally associated with gear shifts, even when cornering. With the HFT, the DN-01 achieves more easy-to-operate and comfortable riding than currently available sports model motorcycles.
* DN-01 stands for the first (01) vehicle developed under Honda’s Dream New (DN) concept.