I'm going away for at least a year and maybe as long as four years and I'm thinking of storing my bikes in the shed in my back yard.
The climate in Perth is 'mediterranean' in that it doesn't rain for about 5 months over summer but makes up for it in winter with about 600-800mm from March to October. It gets as hot as 40C+ in summer and as cold as 1C in winter. Fairly low humidity.
I'm thinking of having the bikes serviced and fully lubed, removing the seats (to store indoors), spraying the bikes with CRC and wrapping them in a dropsheet and then wrapping them in plastic.
Anybody have any ideas or thoughts on this?