Spinner Bikes from Mad Dogg Athletics

I think one of the reasons a lot of people are giving away their old bikes on craigslist is that they're looking for a stationary bike that allows them to do spinning.

Describing their business as a "equipment-based education company," the folks at Mad Dogg Athletics not only sell spinner bikes, but they also offer a range of biking accessories as well as training products such as DVDs. They create and sell indoor cycling bikes meant to meet the needs of consumers who want to train at home. The company's founders first started making spinner bikes in their garage back in 1991, and the fitness trend has exploded from there.

The compact "FIT" model and the beginner's "Sport" model are each available for under $500. As prices increase, different models offer more customizable features for individualizing the ride experience.

I used to think of spinning as a strictly gym-based activity, but no more!