I'll be mtn. biking in Grapevine, if no one is meeting you guys, you could meet us.
My cousin and his roomate purchased mountain bikes a couple of months ago, and I am meeting them at Grapevine (Rockledge) at around 6 to knock out a few miles and get them familiar with the trail. Anyone is welcome to ride with us. I have no idea how fast or slow my cousin/his roomate are.