Assemble Your Bike
Pedal threads are different from left side and right side. The right side pedal has a right-hand thread (removes counterclockwise, installs clockwise). The left side pedal has a left-hand thread (removes clockwise, installs counterclockwise).
Front Fork Assembly
The front fork should have arrived backward in the box. Flip it over so that the drop outs (the bends in the fork) are facing away from the bikes.