Last Updated: May 5, 2026 A cross-country (XC) bike is a lightweight mountain bike built for speed and efficiency on rolling singletrack rather than aggressive descents. Modern XC bikes have 100–120 mm of suspension travel, steeper geometry (~67–69° head angle), 29” wheels, and weigh 9.5–11 kg. Compared to trail bikes (130–150 mm travel, slacker), XC … Continue reading Cross Country Bike: What Is An XC Mountain Bike?