A triathlon bike is a specialized bicycle designed for the sport of triathlon, which combines swimming, cycling, and running. These bikes are built for speed and efficiency, featuring a lightweight frame, aerodynamic design, and specific geometry that allows for a more aggressive riding position. This helps reduce wind resistance, enabling athletes to maintain higher speeds during the cycling segment of the race. Triathlon bikes typically come with aero handlebars, which allow riders to adopt a streamlined posture. They also often have a single chainring setup, simplifying gear changes and reducing weight. Overall, these bikes are tailored to meet the unique demands of triathlon racing, enhancing performance and comfort for athletes.