It is better to just leave it. Starting it and then turning it off in cold weather will build condensation in the motor. You would have to run the motor for a long period of time to rid that condensation in the oil.
As far as the battery is concerned you mentioned a trickle charger. I hope you meant a Battery Tender.
Letting the bike sit will not hurt it at all. Best to change the oil before storage.
As far as the battery is concerned you mentioned a trickle charger. I hope you meant a Battery Tender.
Letting the bike sit will not hurt it at all. Best to change the oil before storage.