The Keiser M3 is the first indoor group cycling bike to combine eddy current resistance instead of traditional mechanical friction, a belt drive instead of chain, and a computerized digital readout. The eddy current resistance provides a non-contact, no wear, no noise resistance and creates the smoothest and quietest ride of any exercise bike. Aesthetically, the M3 boasts an almost naked look exposing its finely machined aluminum components surrounded just enough in its platinum decor for safety, sweat protection, and ease of cleanup. These circular machined surfaces erupt in a starburst of colors as light is reflected from them.