Your handlebars are pre-attached to the stem. Position your handlebars so that your LCD control display is located on the left when seated on the bike. Align the stem base with the handlebar stem and insert into the bike frame. Once you have adjusted the handlebar to your desired height, tighten the screw at the top of the handlebar stem to lock your handlebar in place.
Ensure that the front reflector is forward-facing. Tighten the screw to secure.
Adjust right and left hand brake levers to ensure they are both forward facing and comfortable to grip. Tighten each screw to secure. Pull the left hand brake lever and make sure it is controlling the front brake. Pull the right hand brake lever and make sure it is controlling the rear brake.
Locate the headlight. It should be pre-attached to your frame. Ensure it is pointing forward and tighten the screw to prevent movement.