It's free to join and exciting to play! It's easy to sign up; use this www.rmfantasysmx.com to create an account and start competing for awesome weekly and end-of-season grand prizes! Good luck everyone!. 24 déc. 2013 · https://www.rockymountainatvmc.com/?utm_source=Youtube&utm_medium=FantasySupercross&utm_campaign=Youtubevideos - If you love Monster Energy Supercross, you c.