This bike shop in North Laredo was brought to my attention yesterday. And today I actually came across an ad in the paper for the same place, Ciclo Mania.
The link I provided above for local trails is under construction. As it is right now I just ride my yonka in the old neighborhoods and downtown Laredo. Last year I rode in a nice trail in San Antonio that had some off road obstacles. It was a bit challenging but a great experience nonetheless.
I hope the lack of bike trail listings on Ciclo Mania's site is not due to the fact that an actual massive trail is still in the beginning stages. There are some actual trails out there. I've ridden a couple and I've heard of others. It would be interesting to know where others ride. There's fresh territory out there. I just have to find it.