Some more info: I've underlined the interesting bit.
The big news in this episode of As the Motorcycle World Turns is the much anticipated arrival of the F800GS. Finally, a go-anywhere GS that doesn't require a long inseam or a Herculean physique to man-handle it off-road. BMW claims 392 lbs without fuel, which equates to somewhere in the neighborhood of 440 lbs with all fluids and a full tank of gas. A trellis frame is mated to an inverted fork and standard two-sided swingarm with chain final drive. Combined with wire spoke wheels and dual-purpose tires, the new F800GS chassis should make it easy for riders stepping up to this bike to feel comfortable and familiar right away.
Anyone who has ridden a Boxer-powered GS knows it's a little different than the more standard Parallel Twin in the new F800. With a claimed 85 horsepower and 61 lb-ft of torque on tap, the new GS should have enough power to get where it needs to go while the 4.2-gallon fuel tank, located beneath the seat in the same fashion as the F800S/ST, should be enough to make sure it can handle the adventure part of the equation. Fuel economy on the S and ST models is pretty impressive, so as long as this bike is in that same ballpark, it should have a decent 200+ mile range.
Expect a comfortable seat and rider-friendly ergonomics courtesy of its wide, flat footpegs, high bars combined with a tall windscreen and bodywork that extends out to cover up the radiator and provide some semblance of protection from the elements. An assortment of BMW amenities includes ABS and a 400-watt alternator capable of supporting an assortment of accessories, which should make the touring side of the equation livable too.