Fitness has never been so fun. The Haro Aeras ST (step through) is lightweight, fast and as easy to ride as it is to load onto the bike rack. Built on a lightweight aluminum frame with a step through design to accommodate everyone. Outfitted with 700C wheels and tires, the Aeras ST features a 2 X 8 Microshift gearing setup for smooth, efficient pedaling, anywhere you want to go.