Crossing the Metal Sill

The indoor floor ended at a raised aluminum strip leading out to the balcony. I rolled up to it and stopped. The lip stood half as high as my front hubs. I revved my rear wheels and leaned forward. The treads gripped the ribbed metal. With a dull thud, the front axle dropped onto the outdoor concrete tile. A light draft met my radiator grille. The outdoor patio was right ahead.