If you have access to expensive cardio equipment, I recommend the Concept2 rower or the Assault air bike. (ptinto.com)
You can skip air bikes or any other movements you're doing that focus on the obliques for now. (legionathletics.com)
Bill and Lance travel through war - torn cities, on air bikes, riding missiles and ultimately into the alien base to defeat the alien boss once and for all. (gonintendo.com)