Former UA attendee Aaron James and his coworker Anthony Jones showed up to lend a hand. These guys are both qualified engineers working for a major corporation so we felt they could handle whatever we threw their way. They tackled the task of mounting our two 20-pound Powertanks. Powertanks are filled with CO2 to air up the tires. With 42s and a week of four-wheeling ahead we felt two tanks would be enough, and the bracket to mount the tanks to the rollcage worked out well.