Not sure about potential mechanical issues but have you ridden it.
I was also looking at the 2019 m8 Fatboy until I seen the cost of replacing the front wheel with something more slim , ride one 1st before you trade up , with the 160 front tyre They have this thing of standing up through corners or not cornering... I'd like to see your thoughts as every Rider is different.
Gents dont think its as simple as changing the front to get a better steering bike. That oversise rear will simply create a "pushing" effect on the front creating its own serious of issues. The bike is simply fashion over practicality.