Austrian manufacturer KTM looks set to go full aero with a new concept bike, the Lisse. Sitting pretty in a glass display case at Eurobike with a full complement of Shimano’s new Dura-Ace 9100 groupset, this slick design is still only a mock-up, but KTM expects to have a production bike ready late next year.
KTM designer Gerald Wirthenstätter explained some of the thinking behind the Lisse. The aim was to “clean up” every aspect of a bike’s construction, smoothing and integrating all the major components, hiding the cables fully, and minimising the front cross-section that’s exposed to the wind. At the same time, KTM didn’t want to compromise on user-friendliness or the ability to run mechanical groupsets without major headaches. So-called “top to bottom” internal cable routing is designed to make building the Lisse a cinch, with all cables routed in housings that guide through the whole frame – there shouldn’t be any fishing around and swearing with this one.
The Lisse bears some resemblance to existing aero designs with now-common features like the dropped seat stays and the hidden seat wedge, but it takes things much further. At the front end, the stem is fully integrated and instead of employing conventional spacers to adjust the stack, specially-shaped shims adjust the stem angle in a five-step range.
As the Lisse is still a concept there are no claims of X numbers of watts saved at Y kilometres per hour and we’ve got no idea what the finished article might weigh, nor indeed how much it will cost. It’s an interesting piece of design however, one we’ll be looking out for at Eurobike 2017 – check out the gallery above for some more details pics.