FMX rider and innovator Mike Metzger will be online Thursday, June 22, at 1 p.m. ET to field questions and comments on www.washingtonpost.com. Metzger recently jumped 125 feet over the fountains at Caesars Palace in Las Vegas. He landed that jump and did a backflip while doing it.

Submit your questions and comments any time before or during today's discussion. In order to participate you must sign up for a free login and password to be able to access the site. 

 
Metzger has won competitions including three X Games golds and plans to compete in this weekend's Dew Action Sports Tour event in Louisville.