Sqlab 621 M-D Active

The M-D Line was developed for maximum relief of sensitive areas. It features pressure distribution based on medical principles. The M-D Line stands for maximized dip and, in combination with the high classic step shape, distributes body weight onto the sit bones. The 621 M-D is suitable for city bikes with a slightly forward-leaning to very upright seating position. This model offers the highest relief for the perineal area and prostate at 85% across the entire SQlab product range. Only the 600 active provides slightly more with 100% relief. The active system is tuned a bit firmer with the black damper compared to the Ergolux series and can be adjusted using four comfort sticks. The M-D Line is therefore suitable for heavier riders due to its stable CrMo struts. In particular, the width of 24 cm provides a very large contact area to accommodate higher body weights well. If relief of the perineal area is not your main concern and maximum comfort on the sit bones is your priority, we recommend the Ergolux series.