I would just go with the basic. if it were outside bike lockers or that Bike Tree thing would be wonderful.
http://www.jbimporters.com/web/check...t_number=95056
you could bolt this down or maybe use some heavy sand bags to help hold it in place.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk