Expresso Fitness Corp.

Test-Riding a $5,000 Indoor Bike

Walter S. Mossberg and Katherine Boehret in The Digital Solution on February 1, 2006 at 12:01 am PT

A test-workout on the Spark, a new Web-connected stationary bike that allows you to race against virtual riders, finds that it makes exercise more interesting. But most of the virtual courses will be too strenuous for out-of-shape users.