For the most part, installing flat pedals is quite easy. Tools you’ll need include a pedal wrench or hex key (sometimes called an Allen key). While there’ll be a few specific tweaks to different bikes, the general steps are similar. They include the following:
Use the pedal wrench or hex key to unscrew the existing pedals from the crank arms.
Always remember that the right-side pedals loosen clockwise.
Apply bike grease to the new flat pedals and screw in at even 90-degree angles. Always check for the L and R markings to ensure that each pedal goes on the correct size – yes, it makes a difference!
Screw the pedal in until it’s fully inserted and tight enough.
Give each pedal a few turns to make sure it’s fitted and sturdy.