Hey Matt, I'm a member of the UNT Cycling Club, but we don't have any scheduled rides currently. Elliot is in charge of the club and is an awesome dude, but unfortunately its been difficult for us to get anything together with school and other distractions. We mostly just focus on our own collegiate racing, as the people who say they'll attend meetings or race typically do not show up. The Triathlon Club at UNT does have rides, but I haven't been going to them lately so I'm not sure how well structured they are. There is a social ride on Tuesday evenings called Tuesday Night Bike. This is led by dudes on fixies and many riders rep the fixed gears, but its open to all and you see a wide array of riders and rides there. I go to Tuesday Night Bike every week, and its a really good time. All three of these groups have Facebook pages, which is the best way to contact/learn about them.

The Bicycle Path, as mentioned before, is a good shop with frequent rides. I think they have a Friday MTB ride where they meet at the shop and head to a different trail each week. Last week was the final week of their Wednesday evening time trial for the Fall, unfortunately. These will begin again in the Spring, though. I'm not sure when their other rides are, but you can contact them through Facebook as well, or their website which is mentioned by StephenH above.

I went to a few of Corinth Cycling's Saturday morning rides last Fall, and they were great. Unfortunately, I haven't been able to join them at all this semester.

Are you mostly a roadie or mountain biker? If you don't have a facebook, I can email you about any rides I hear about. I'll try my best to answer any questions you have.