Here's some info about the training rides in Austin:

Nike 10//2 Training
It’s free. It’s open to everyone. Come join us beginning July 29.

Nike and the Lance Armstrong Foundation are teaming up to get you ready for the LIVESTRONG Challenge by hosting local Nike 10//2 Training events twice a week in Austin. The training is free for riders, runners, and walkers of all abilities, and is a great way to not only get to know other LIVESTRONG Challenge participants, but to get some time in the saddle or on the path! Now, for every new friend you bring along to a Nike 10//2 Training, you will receive one entry into an on-site drawing for a Nike 10//2 prize.