With the autumn fully upon us, and winter headed our way soon, most of us are looking for indoor training options to retain the fitness we've been working so hard to achieve all year. Karl Etzel of Silicon Valley Cycling Center is going to be going over a few trainers and other indoor training options you might like to try.

httpv://www.youtube.com/watch?v=jjBfxKphDB0
Karl Etzel of Silicon Valley Cycling Center