SQlab

621 M-D Active 2.1 Saddle

SQlab 621 M-D Active 2.1 Saddle is built for city and comfort bikes ridden in a very upright position, where traditional saddles often concentrate pressure in sensitive soft-tissue areas. Its shape targets pressure relief and stable support on the sit bones, with an emphasis on medically informed pressure distribution for day-to-day commuting and fitness cruising.

Using the SQlab active system, the saddle is designed to follow the pedaling motion rather than resisting it. This controlled movement can improve comfort over longer rides by reducing peak pressure on the sit bones and supporting more natural pelvic motion while pedaling.

What makes the 621 M-D Active different for upright riders

• Maximum relief design - reduces pressure in sensitive areas for comfort-focused, upright city-bike positioning
• Medically guided pressure distribution - supports even load across the sit-bone contact zone instead of soft tissue
• SQlab active system (Active 2.1) - saddle movement is designed to track the pedal stroke for smoother, less restrictive support
• M-D “Maximized Dip” - deeper central dip helps keep pressure off soft tissue while maintaining sit-bone support
• High classic step shape - helps position body weight on the sit bones for stable, repeatable seating during stop-and-go riding