How can I change the bicycle crank on my bike?

To change the bicycle crank on your bike, you will need to first remove the pedals using a pedal wrench. Then, use a crank puller tool to remove the crank arms from the bottom bracket. Install the new crank arms onto the bottom bracket and tighten them securely. Finally, reattach the pedals and make sure everything is properly aligned and tightened before riding.