Olympic gymnast, Shannon Miller, explains the basics of the perfect cartwheel. It's a basic gymnastics skill that may seem simple, but does take practice to perfect. Do you have a "Gymnastics How To" question for Shannon? Ask it in the comments below, tag her on Twitter or Instagram, both are: @ShannonMiller96, or ask on her Shannon Miller Official Facebook page. http://shannonmiller.com/gymnastics-videos/gymnastics-how-to/the-perfect-cartwheel