If you still have all the original packaging for the bike, the disassembly process is going to go a lot easier. The plastic fork blocks will be needed, as well as some zip-ties and the cardboard that went around the bike itself. IF not, you can find all of this at your local bicycle store. Most bicycle stores will throw these items away and will be happy to give you a box and some packaging material.
You're going to need the following tools:
10mm wrench
15mm wrench
4-5-6 mm Allen keys
Remove the pedals, seat, and seat post. When you're removing the pedals, keep in mind that the left pedal is reverse threaded, so it needs to go clockwise. Wrap the crank arms in cardboard.
Then you'll need to create slack in the cabling. The way to do this, on your front brake caliper, there is a quick release that looks like a silver comma on the right-hand side, flip that up and it will create slack in the brake cable.
Then you will need to loosen then remove the handlebars. This is where you'll need those Allen keys. Remove the four bolts on the front of the stem, remove the handlebars and then replace that plate with the four bolts. Then you should use the Allen wrench on the top of the stem and turn the stem around.
Now you can remove the front wheel. Unscrew the quick release, pull it from the hub. Reassemble the skewer and place it into a bag. Then place the plastic fork protector onto the forks.
Here's where the zip ties come in!
What you're going to do is rest the bike on the ground, put the wheel on the left side of the bike. Thread the crank arm between the spokes of the wheel, then slide down the crank arm to snug the wheel against the bike frame. Make sure no part of the crank arm is touching the wheel. Zip tie the wheel down in several places so it cannot move.
Then you have the handlebars left. You may find it easier to tuck the handlebars under the top tube and inside of the wheel, then zip tie.
Any loose parts you have, place them inside of a bag and attach them to the bike frame.
Lift the bike up and place it into the cardboard shipping box. Rotate the fork 180 degrees so the bike is a little shorter and a little more compact. Tuck cardboard around the bike as extra protection and you should be good to go!
If you've got all this together, tape the box shut and you should be good to go. We do charge a restocking fee if the bike is not sent back in the condition it was shipped but, if you follow my instruction, you should be fine!
If you need any further assistance, please do reach out to us.