BMW K1600 by NURB

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The Krugger NURB turns BMW’s high-tech K1600 into something radically more sculptural. Its broad bodywork, exposed six-cylinder exhaust headers and enormous billet-style wheels give the touring platform an almost futuristic custom silhouette, while the retained engine keeps a direct link to the motorcycle beneath the redesign.

A K1600 with almost nothing left untouched

Built by Belgian custom designer Fred “Krugger” Bertrand after a reported commission from BMW France, the NURB was conceived as more than a cosmetic exercise. The project retained the BMW engine and its complex electronic systems, but replaced the original frame with a new chassis. A new swingarm and a substantially revised Duolever front end followed, with the original shock absorber reportedly being the major suspension component carried over.

That approach explains the bike’s unusually clean profile. The handlebars are low, flat-track-inspired pieces rather than the elevated controls associated with a standard K1600 GTL-style touring machine. The result is a long, low stance that visually compresses the motorcycle and shifts attention toward its mechanical center.

Freeing the engine for display

Relocating the radiators to the sides created open space around the front of the engine. The six exhaust headers now sweep visibly beneath the chassis, turning what is normally hidden engineering into one of the NURB’s strongest design features. Their polished finish contrasts with the darker frame elements and makes the inline-six layout immediately legible.

The bodywork is equally deliberate. A large upper shell flows into a long tail section, with the seat tucked into the top of the form rather than treated as a separate touring component. The reported twin-tank arrangement places one tank beneath the seat and connects it to a secondary tank in the tail, whose separate filler is visible in the streamlined rear section.

Wheel scale changes the whole proportion

The custom wheels dominate the motorcycle visually. The reported 21-inch front and 20-inch rear diameters stretch the already long chassis, while their rounded, machined-looking surfaces echo the smooth edges of the bodywork. Both ends use single-sided arrangements, leaving the wheel centers and much of the surrounding hardware unusually exposed.

In the supplied views, that combination of huge tires, narrow cockpit and polished headers makes the NURB look closer to a rolling design study than a conventional touring conversion. It is an especially bold answer to the question of what a K1600 can become when its original packaging is treated as negotiable.

Braking and retained technology

Krugger reportedly fitted Beringer six-piston front and four-piston rear calipers while working to integrate them with the BMW’s standard ABS system. That detail matters: the NURB’s visual transformation is extensive, but the build was also shaped by the need to preserve the donor motorcycle’s sophisticated electronics and safety systems.

Source: Autoevolution

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