I had to convert that but yes, that is a very heavy bike. I have a 1200RT and yours is 100 kg heavier, goodness knows on what. I know that the Michelin Road 6 comes in GT versions with an extra ply for heavier bikes - maybe that's actually for yours and not mine!
Most people ride Michelin Commanders on these bikes (Kawasaki Voyager XII) but even the stock tires had sidewalls which cause low speed wobbles and unexpected handlebar locking right as you start to put your foot down. The front tire just doesn't have enough strength for the weight of the bike lol
That’s pretty nuts, I thought those were cruiser tyres specifically with softer sidewalls, whereas sports tourer tyres have those stiff sidewalls for better handling. I think all the K1600s I’ve seen, similar weight, had Metzler Roadtecs or Z8s on (great tyre BTW, always rated a Metzler front tyre, even if they wore out quicker than the Michelin, lovely while they last).
Still, sounds like an interesting characteristic to get used to. Always wanted a go on a really massive cruiser/tourer, but I struggled with my tutor/observer’s Pan European, made me realize that the RT’s design was a lot cleverer than I thought.
