Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to safely ride a bicycle with shoe connectors [title] Have a professional install the shoe clips or connectors. [step] You will need to purchase your bicycle shoes at the same time (to install the shoe part of the clips into), unless you already own a pair. Do not leave until you have engaged the clips and disengaged the clips.

Ending1: [substeps] There are no known safety accidents when installing shoes in your bicycle. However, they have begun to become commonplace, and will be more common as your bicycle takes to a fast pace. Ending2: [substeps] You could also try using a pair of sponges instead when you are using your bicycle shoe. Purchasing reusable shoe clips (like the sort used in bike shoes) will simplify the installation process when you are able to purchase the shoes. Ending3: Then and only then can the studs or clamps through. [substeps] It is a good idea to have the last half " bare ". Ending4: You don't want to find yourself stuck in them. Have the professional adjust the clips so that they are firm, but easy to disengage (by twisting your feet).

Answer format: ending1/ending2/ending3/ending4