What happens next in this paragraph?

How to replace bike pedals
Secure your bike on a flat surface.
If your bike has a kickstand, rest your bike on it. If your bike doesn't have a kickstand, lean it up against a wall or a table so it stays upright.
OPT: 1). Slide the kickstand off your bike. Spin the bike wheel over and off onto flat ground. 2). Check the pedals to see what kind of wrench you'll need. Look at the space in between the pedal and the crank arm (the metal arm that your pedals are attached to). 3). Lift a clean, cut piece of cardboard about 3 feet (0.91 m) thick and 4 feet (1.91 m) tall and put it in front of the bike. Scoot forward and shorten it to look out the front window. 4). Loosen both pedals of the bike. Use a wrench to tighten one pedal at a time.
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