I hope I can answer most of your questions you have left. As everyone told you, this is not a sport for the weak. As far as gas, most bikes run a regualar tank. We run long distances and it is usually a long way back to camp if you run out of gas. As far as Course length, SS- is the Super Short Course, they typically ride to the first gas. Then you have your regular short and long course. We (The Race Chairs) will assign your row when you sign up, and that is your placment for the day. As far as your tires go, we do have a LOT of cactus and mesquite thorns that are tire getters for sure. Be prepared!! If you have any other questions please feel free to contact any TSCEC board members and we will do our best to answer any and all questions you may have! Look forward to seeing you on the trials!!