B Ben Z New member Mar 28, 2009 #1 I'm thinking about buying one but every website I go to just says "works out upper body" How exactly do these bikes work out your upper body? I see that the handles move or whatever but what exactly does it do? What is it helping?
I'm thinking about buying one but every website I go to just says "works out upper body" How exactly do these bikes work out your upper body? I see that the handles move or whatever but what exactly does it do? What is it helping?
