Tehachapi Mountain Trails Association

I have always been intrested in riding my mountain bike, but I just have not made the time. One of my best friends entered a race up here in Septemeber and I decided to join him. Hopefully I can finish!!!  I am way out of shape unless round is considered a good shape. So my training has begun and we will see where it takes me 7 miles on Sunday 8 miles on Monday and Tuesday is an off day for me. If anyone has any suggestions on some good MTB trails aorund the area to ride please let me know.