A tandem bicycle is made for two riders.
Both riders have pedals that they push with their feet.
This family has added a baby seat to their tandem bicycle.
A stationary bike stays in one place.
People ride a stationary bike to exercise and lose weight.
A stationary bike is also called an exercise bike.
Some adults participate in bicycle races.
Riders in a bicycle race wear numbers on their shirts.
Racers compete to finish first and win an award.