I might have eventually done a post about the rear drive.
Hold the front brake and apply power the rear end rises. Hold the rear brake and apply power maintains position.
There can be some chain slap over bumps.
I don't why they did not copy the tensioning system in the 1975 Norton and likely others that allows the top or bottom of the chain to be in a straight line depending on acceleration or deceleration. In regen the slider for tension is loaded.
I got the pulse cast wheel wider rim and 17" mounted a big block dot knobby. There must be some harmonics with the rear drive and the knob noise or vibration at maybe 15 mph or so that was unlike anything else riding knobs on the pavement.
3 lug bolts, I guess the R80gs BMW had 3 as well at least the Honda W7 will come with 5. Looking at the parts diagram instead of normal wheel bearings it appears a needle bearing on the chain side and a plain bearing on the other side. Obviously, road race bikes use the overall single sided set up. I can't wiggle any play.
It is clean that is for sure. The ring for the abs/traction control is inside which for an adv bike where surely you are going to sink in mud, loam, sand or whatever every now and then is good. I suppose it could be in the enclosed part of the drive system before a chain or belt. The wire for that sensor could be damaged I suppose. I do have another bike with abs and the sensor is pretty well hidden inside, it has a cush drive hub.
It forces the passenger footpeg to be kind of far off the center line hence put the one on the other side equally out. They are an extra add on with the passenger seat and hand holds, parts not available individually if you manage to damage them, cast aluminum with lightening voids at least on the hand holds. Probably sort of similar to single muffler constraints. Same thing for saddlebag or pannier as often named.
The actual location of the swingarm pivot is low. I am not sure if that is really heavy duty the whole bike is only rated for something like 330 pounds of passengers and luggage. Might just be a 12mm bolt for that pivot inside the bearings if I read the parts sheets right. It does not go through the big block with the battery. In dirt bikes at least for the ones when they introduced linkages the back of the engine could break up.
Not sure what else to mention.