If you are uncomfortable with bike mechanics, it is best to have it assembled by a bike shop or expert.
Carefully remove ONLY the packing zip ties, do not cut any wires or cables. All the packing zip ties are green to help avoid mistakes.
There is a plastic spacer supporting the front brake caliper between the brake pad area. Note that squeezing the brake lever without the spacer or bike rotor installed will clamp the pistons closed. It is recommended to save the spacer to use anytime you remove the front wheel.
Avoid touching the brake rotors with your fingers. The natural oil present on your hands will contaminate the rotors, reduce braking efficacy, and create a loud whining pitch when braking.
Apply grease to the pedal threads and anti-slip to the seat post before installation
Make sure your fork is not backward. The brake caliper and rotor should be on the left (in rider orientation)
Step 1: Unpack the bike
The first step is to remove the bicycle from the box, this can be easier if a second person can hold the box while the first person lifts the bicycle. Cut the packing material away from the bike. All the zip ties that need to be cut are colored green.
Step 2: Unpack the parts box
Remove the parts box from the bicycle box and open it. Below is a photo illustrating what everything is.