Marin Rock Springs 1 – Upgraded 1x Drivetrain, Race Face Turbine Crankset, Manitou Fork

This Marin Rock Springs 1 is a solid and fun hardtail trail bike — perfect for local singletrack, fitness rides, or technical climbs. It’s in great shape with a few cosmetic scratches from normal use and several high-quality upgrades that make it ride better than stock. Small/Medium is perfect for teens who are serious riders. Highlights: • Upgraded 1x drivetrain for cleaner shifting and lighter weight • Race Face Turbine crankset – strong, lightweight aluminum crank • Shimano SLX rear derailleur – crisp, reliable shifting • Manitou fork with adjustable rebound and lockout • Maxxis tires with good tread • Hydraulic disc brakes for solid stopping power • Smooth ride, no mechanical issues – ready to hit the trails today This is a well-maintained, upgraded trail bike from a respected brand — perfect for someone looking for performance without paying new-bike prices.