A tandem bicycle is a type of bicycle designed for two or more riders. It features two seats, two sets of pedals, and two handlebars, allowing multiple cyclists to ride together. The riders work in unison to propel the bike forward, making it a fun and social way to cycle. Tandem bicycles are often used for recreational riding, touring, and even racing. They can be beneficial for couples or friends who want to enjoy cycling together, as they can share the experience and support each other. Additionally, they can be adapted for riders with different abilities, promoting inclusivity in cycling.