We all want the same thing out of cross-country: speed. The 4 series equips racers with the technology to stay at the head of the pack in any event along with rock-solid basics that arm you with the nerve to let loose. Geometry engineered to energize on climbs and keep you stable all the time combines with strong, low profile derailleurs and a full suspension with rear lockout to handle bumps in the road between sprints. Watch the trail, and the competition, vanish behind you.