Trek Marlin 6 Hardtail Mountain Bike 2026Trek Marlin 6 Hardtail Mountain Bike 2026 The Marlin 6 is the perfect ride for progressing your skills on the trails. Its updated slacker frame geometry makes it easier to control on descents while the suspension fork takes the edge off bumpy trails. Integrated rack and kickstand mounts make it easy to add accessories to this versatile steed. It's right for you if You want a trail bike that's dialled for building confidence on the dirt, and versatile