Hi Zack. Nice to meet you. I don't know where or how you got a 150/80 16, but you're getting cheated on your handling with skinny tire. No matter. That 150/80 16 is only 1 mm taller than the OEM 170/70R 16 Dunlop D206 (when it was new), so your are at the about the same height on your rear tire. When you change it though, you really should go to a wider tire like the OEM 170/70R 16 or a Valk-sized 180/70r 16 or a Gold Wing-sized 180/60R 16.

As for the front tire, your choices are only the OEM 130/80R 18 or the Gold Wing-sized 130/70R 18. The Valk front tire (150/60R 18) is too big for the T. The Gold Wing-sized 130/70R 18 is what most of us have gone to because there is a wider choice of tire types in that size that get better mileage than the OEM 130/80R 18. The OEM tire only comes as a Dunlop D206 or a Bridgestone G722. They aren't bad tires, but you can get more mileage out of a Gold Wing-sized Avon Cobra or Dunlop Elite 3. Good Luck. And Welcome aboard.

Gary

"Life is not a journey to the grave with the intention of arriving safely in a well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming: Wow!!! What A Ride!!!"