I do two things which may be overboard. I use Anderson levelers on both tires to cradle the tires in hope to minimise possible flat spots after the long winter. I also cover the tires with tire covers to decrease UV exposure.
2018 T@b 400, 200ah Lithium with Solar 2013 Tundra TRD 5.7L Massachusetts
I park it outside on 2x12s to keep it level and prevent it from sinking into the ground. I don't use any covers other than the trailer cover itself and what Mother Nature provides in the form of snow and ice. My tires are still just fine after five seasons. I suspect they will wear out from use before I have to worry about degradation while parked. YMMV.
Comments
2013 Tundra TRD 5.7L
Massachusetts
If you are in a high sun area buy a couple of tire covers.....not sure I am too worried about flat spots
2020 320s Boondock lite, With Lots of mods