Using the Omnium Mini V3 is a breeze. First, decide on your drivetrain option. You can choose between external gears with a derailleur, internal gears, or a belt drive. Use the adjustable rocker dropouts to switch between these options. When it comes to the rear hub, use the swappable inserts to pick between thru - axle and quick - release based on your needs. As for carrying loads, make sure they fit within the size of the front rack. Don't worry too much about the weight affecting steering, but keep it balanced. When it comes to maintenance, regularly check the drivetrain for any signs of wear. If you have a broken gear hanger, use your spare set of inserts to replace it easily. Also, keep the tires inflated to ensure a smooth ride.