Most cyclists pedal with their right foot, while some go with left or right. If you’re not sure which you are, it’s usually pretty evident if you try to pedal with the other foot.
To change pedals, you should remove the old one by unscrewing it from the crank arm, then attach the new pedal to the crank arm. You may find that your pedals have “right side” and “left side” labels – use these to determine which is which.
Some cyclists will recommend using a pedal wrench instead of a hex key for this task. The wrench is often included or sold with new pedals, but you can also buy it separately.
Take each pedal in turn, and unscrew it counterclockwise until the threading comes out of the crank arm. Use a hex key to screw in your new pedal clockwise tight enough to hold its place without too much play. If there’s a right and left pedal, be sure to get them on the correct side of the bike!
When you’re done, test that your pedals are tight enough. You can do this by applying force from side to side, or by putting one foot and then the other into the pedals and attempting to turn them. If they feel loose in either case, take them off and retighten.
When you’re sure they won’t come undone by themselves, attach the clip of your cycling shoes to the pedals and go try a ride! If you have flat pedals on your bike, secure your shoe with a strap instead – many people find this easier than trying to clip in while riding.
So this is how to Change Bike Pedals.