Saw the '17 DSR today, side by side with the '16. I was not interested in riding them, but took a good look.
- new wider and beefier belt with bigger teeth
- new battery pack, 2 modules vs. 4. Same capacity, 13kW as '16. A "half pack" option of the S and DS will be available as someone mentioned
- the new tank cover looks nice, but it does not stretch for that little extra half inch storage and needs a key to open/close (good and bad)
- painted plastics, like car paint
- more torque higher top speed. Not sure if I heard right, 116 and 106 respectively for the DSR.
- there is some new plastic on the front of the battery, not much different in looks than the old one