I've heard a lot of complaints about the wobbly MT09 Tracer at high (>160km/h) speeds. I've also heard it was only on the first models, and due to the hand guards having bad aerodynamics. AFAIK it's solvable with aftermarket (or no) hand guards.

I've had both Yamaha and Honda motorcycles in the past, and all of them had extremely poor suspensions. My Honda XLV1000 fell multiple times from the stand because how soft the suspension became after only 6 months even after tuning it for maximum force. I'm surely a contributing factor for being overweight, but they should be anyway approved for 2 people, and swapping the suspensions with aftermarket quality ones always solves the problem. Looks like many Japanese made bikes share this problem; they're fantastic, but their suspension system is definitely not on par.

Try MT09 SP.