Cross-country bikes are designed for speed and efficiency on varied terrains, making them ideal for competitive mountain biking. They typically feature lightweight frames, narrow tires, and a geometry that promotes an upright riding position. This design allows riders to tackle both climbs and descents effectively. These bikes often come with front suspension, known as hardtails, or full suspension for added comfort and control. Cross-country biking is popular in events like Olympic mountain biking and marathon races, where endurance and agility are crucial. Riders appreciate the balance of performance and versatility that these bikes offer for both racing and recreational use.