I hook our bikes on Deltran's small battery tenders, I bought waterproof models since my garage isnt finished or heated. If you cant get the tires off the ground, stack up a few layers of cardboard under them to keep them from wanting to flatspot. Fill your tank, add stabilizer to the fuel, and run the bike for a bit to get it through the fuel system, THEN shut it down for the winter. Coolant wont be a worry since yours will be stored in a heated garage.