Reader Paul Murphy sends along this ad from the Australian division of Giant Bicycles. The spot, by the Melbourne-based firm Leo Burnett, started airing last summer as part of Giant’s “Real Riders” campaign. Imagine if images of grocery bags slung over handlebars could somehow saturate the airwaves as much as sleek new luxury sedans gliding through traffic-free downtown streets.

Has anyone seen an ad with so many scenes of city cycling air in the U.S.?