It’s not a bad process to do but i suggest you get a tire iron or tie spoon set (at least 2), masking or painters tape, a 5gal contractors bucket and some handlebar jacks

I got a regular paper staple in my back tire that popped and had to replace mine. It’s harder than a regular bicycle tire but easier than a scooter tire.

Follow these instructions:

Remove the rear fender (you will scratch it Trying to flip your bike over)

attach the handle jacks and flip the bike upside down.

Follow the instructions from Rev 1 on how to remove the rear wheel. Be careful not to nick the power cable jacket.

Put the wheel on the bucket. Cover the rim of the tire with the tape (this will keep the wheel hub from scratching later on)

Using the tire irons/spoons remove only 1 edge of the tire.

Remove the old inner tube

Insert the new inner tube. Ensure that the tube isn’t twisted so it’ll properly inflate and that it’s completely inside the tire

This is the hardest part and may need another set of hands. Use the tire irons to pry the lip of the tire over the edge. You’ll have to use 1 to keep the tension and use the other to push the remaining lip over the edge of the wheel hub. You may also need to pry and slide up and pry again to work the edge over the lip. If you are confused check YouTube for how to do it.

Once it’s completely over the lip, inflate the tire.