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621 M-D active 2.1 - 900 black - 18cm
621 M-D active 2.1 - 900 black - 18cm
621 M-D active 2.1 - 900 black - 18cm
621 M-D active 2.1 - 900 black - 18cm
621 M-D active 2.1 - 900 black - 18cm
621 M-D active 2.1 - 900 black - 18cm
621 M-D active 2.1 - 900 black - 18cm
621 M-D active 2.1 - 900 black - 18cm
621 M-D active 2.1 - 900 black - 18cm
621 M-D active 2.1 - 900 black - 18cm
621 M-D active 2.1 - 900 black - 18cm
621 M-D active 2.1 - 900 black - 18cm
E-Bike readyE-Bike Ready

621 M-D active 2.1 Comfort bike saddle for maximum pressure relief

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Color:

900 black

621 M-D active 2.1 - 900 black

Size:

18cm

Available NowShips from one of our distribution centers in 1-3 business days
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Item-no. 57230-2002

SQlab City Lifestyle

M-D stands for maximum relief

621 M-D active 2.1

The 621 M-D active 2.1 is for city bikes with a slightly forward bent to very upright sitting position. The details of the saddle offer maximum relief of sensitive areas.

  • SQlab Lab 2025

    comfort, dialed in

    With the switch function, the lateral movement of the active technology can be adjusted in two stages – so you get exactly the level of flex and support you want.
    Read more
  • SQlab City 621 active

    Step Design

    The two-level shape of the 621 ERGOLUX® relieves pressure and supports the sit bones—ideal for long rides with efficient power transfer and lasting comfort.
    Read more
  • City Lifestyle

    Comfort in the City

    Designed for everyday riding, the 621 ERGOLUX® offers balanced support and pressure relief—perfect for stop-and-go traffic and upright positions in urban environments.
    Read more
sqlab.produkte.sattel.621.md.active.2.1.sattelbreiten.18cm.21cm.24cm

Saddle Width System

perfect fit

Comfort begins with the right size. The 621 ERGOLUX® active 2.1 comes in multiple widths, ensuring that the sit bones are fully supported. Only then can pressure be effectively relieved from the sensitive perineal area in men and the often lower pubic arch in women.
sqlab.produkte.sattel.621.md.active.2.1.stufensattel

M-D Line

pressure relief

The high classic step shape, combined with the maximized dip, distributes body weight to the sit bones. This model offers with 85% the highest relief for perineal area and prostate from the entire SQlab product range. The M-D Line is also suitable for heavier riders due to the active system and the stable CrMo rails. In particular, the width of 24 cm provides a very large bearing surface to absorb even high body weight well.
  • SQlab City Lifestyle
  • SQlab City Lifestyle
  • SQlab City Lifestyle
sqlab.produkte.sattel.621.md.621.ergolux.active.switch.active.system

active-Technology

Back-friendly support

The SQlab active saddle technology allows the saddle to follow the natural pedaling motion through lateral flex. This can help to reduce strain on the spinal discs and promote mobility. The updated active 2.1 version now features a practical switch function – letting you choose between two levels of movement, easily adjustable in seconds.
Active Study
sqlab.produkte.sattelvergleich.621.ergolux.621.md2

sqlab.produkte.sattelvergleich.621.ergolux.621.md

M-D Line stands for maximum relief.

The M-D Line was developed for maximum relief of sensitive areas. A pressure distribution according to medical aspects. M-D Line stands for maximized dip. In combination with the high classic step shape, distributes the body weight to the sit bones. The 621 M-D active 2.1 has a relief of 85%. 

ERGOLUX® means comfort

The two-stage ERGOLUX® shape supports balanced pressure distribution between the sit bones and the perineal area – ideal for a more upright riding position. Thanks to the wave-shaped contour, pressure is spread over a wide area of the sit bones. Compared to the M-D Line, the difference in height between the seating surface and the relief zone is more moderate – for noticeable comfort on everyday city rides or leisurely tours. The 621 ERGOLUX® active 2.1 provides up to 70% relief in the perineal region.

621 ERGOLUX® active 2.1

621 M-D active 2.1

602 M-D active 2.1

602 ERGOLUX® active 2.1

The 621 M-D active 2.1 is designed for comfort-focused riders who appreciate pressure relief and support on upright city bikes. The „M-D“ shape (Maximized Dip) maximizes pressure relief in the perineal area and is excellent for prostate patients and riders who struggle with the ERGOLUX relief. Meanwhile, the movement of the active system can relieve the lower back.
With more padding and a wide contact area, it is the ultimate saddle for relaxed daily commutes and city rides.

Key Features:
M-D Shape – Maximized dip for maximum relief in the perineal and pubic bone area
Active System 2.1 – Promotes natural pelvic movement
Wide contact area – Designed for upright seating positions
Ready for the city – Ergonomic comfort, every day
ARTICLE NUMBER57230-2002
BAR CODE4062695002321, 4062695002338, 4062695002345
SIZE(S) IN CM (EFFECTIVE SADDLE WIDTH)18 / 21 / 24
AREA OF USECity
WEIGHT(S) IN Gapprox. 640 / 650 / 660
LENGTH(S) IN MMapprox. 277
EFFECTIVE HEIGHT IN MMapprox. 88
ACTIVE TECHNOLOGYYes - Comfort
MATERIAL RAILSCrMo (solid)
MATERIAL BASEPolypropylene Compound (PP)
MATERIAL PADDINGComfort Foam
MATERIAL COVERDurable Microfibre
HARDNESS IN SQ-SHORE40
RELIEF OF PERINEAL AREA IN %85
MAXIMUM LOAD IN KG150
MAXIMUM TORQUE IN NM18
E-BIKE READYYes
DIN/ASTM CATEGORIES1
GENDERUnisex
WARNING: cancer and reproductive harm according to - https://www.p65warnings.ca.gov/
+49 89 666 10 46 0
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