Found an article on bmwsporttouring.com
engine, transmission, driveline, and final drive - it is clear that the weight is not centered left-right. The inline engine lying on its side has the crankshaft located right of the centerline of the chassis. The transmission is also weight biased to the right. And, obviously the bulk of the swingarm, the driveshaft, and the final drive or rear end unit are located right of the center line of the chassis.
If you were to attempt to balance a K bike on its tires on a perfectly flat surface in a zero wind enclosure, from an absolutely vertical position it would inevitably always fall over to the right. So, when riding the bike, more often than not the weight bias to the right will cause the motorcycle to want to lean to the right. This again makes it necessary to hold slight left steering pressure to go straight and added wear left-of-center on the front tire.