I had Metzler Tourance tires (85-15, road vs off-road tire) installed on my 2014 DS, when purchased in April/May. I researched the tires for my type of riding (slower than freeway 85% of the time, possibly light moist forest paved roads, some off-road on dirt trails) and selected the same tire that the BMW GS has/had as standard on their bikes, along with some DS Ducati and similar bikes.
I'm happy with it, although it does not grip the dirt roads very well, and I average 130-140 miles for the 11.4KW and power-tank option (extrapolation, since I rarely discharge more than 80% of battery, and nearing the end-point of available battery power may reduce mileage). Most driving is closer to 35 mph and very hilly, and the tire may slip on uneven pavement, but always grabs traction, lending a feeling of trust in the tire. But, my driving is not aggressive and I am certainly not pushing it.