Everything I know is either with the FWBA, Bicycle's Inc, or Panther City Cycles. I usually travel to Joe Pool Lake Tues and Thurs for group rides with the Texas Wheels. I am on the east side of FW and ride a lot. Two makes a group, so you can ride with me if ya like
Cannondale T1000, Inbred SS 29er, Supercaliber 29er, Crescent Mark XX, Burley Rumba Tandem
Colonel's Cycles does a Thursday night singlespeed ride that's not for the faint of thigh. Also, the FWMBA does a semi-regular Tuesday night dirt ride at the trail at Sansom Park, generally followed by pizza at Bosses Pizza around the corner.