The Wilbers LDC in detail

How does it work?

The LDC shock absorber consists of two separate oil chambers, one broad piston rod, a mechanical pump with a pressure valve and a short external suspension spring.
With the oil chambers, a distinction is made between the external low-pressure and the internal gas-assisted high pressure chamber. When weight is put on the shock, the rod automatically pumps the oil from the low- into the high-pressure chamber. At the same time the piston rod is pushed out of the damper! This pumping process takes only as long as it takes the motorbike to balance. The shock absorber settles to the correct level after driving about 300m.
With the LDC Nivomat Twin Shock, the system functions are divided into two individual components. The Ecoline shock absorber is equipped with a spiral steel spring and takes over part of the overall damping. The Nivomat provides the level control and adjusts the spring rate and the additional damping required depending on the load. The driver doesn’t need to manually adjust anything.

Cross section

1. Guide rod with bushing and friction optimized HP-seals
2. High pressure chamber with gasbag
3. Cylinder tube
4. Low pressure chamber with oil reservoir
5. Pump rod
6. Floating control sleeve fixation
7. Compression valve
8. Suction valve in pump rod
9. Control Sleeve
10. Combi piston - monotube - damping system

Das Prinzip

The LDC Nivomat system is pre-set in a way so that it reaches the pre-defined position for solo use immediately. This is approx. 1/3 of the total spring travel distance. In this condition the system offers a reduced spring rate and damping compared to a conventional shock absorber. Maximum comfort is offered for solo riders without swaying.

The addition of a passenger and/or luggage causes the vehicle to sink and negatively effects the vehicle geometry. In this case it would normally be necessary to preload the spring in a “standard” shock absorber, but often only the overall level is adjusted. The necessary adjustment of the spring rate cannot take place.

After driving a distance of approx. 300m with a pilot, passenger and/or luggage, the LDC shock raises the vehicle back to the pre-defined level.
The inner pump rod has pumped oil from the low-pressure to the high-pressure chamber. Due to the increased high pressure, the vehicle is lifted to the pre-defined level. At the same time the spring rate adapts to the load.

Advantages of Wilbers LDC versus
conventional Shock absorbers

Conventional shock absorber

  • Seat height changes depending on weight and luggage.

  • Reduced spring travel, depending on weight and luggage.

  • Different bike geometry, depending on weight and luggage.

  • Loss of ground clearance depending on weight and luggage

  Wilbers LDC Nivomat

  • Constant seat height, weight and luggage have no effect.

  • Complete use of the full suspension.

  • Consistent geometry which isn’t effected by weight or luggage.

  • The Wilbers LDC always reverts back to the pre-defined level and ensures the best ground clearance and cornering clearance.
  • Advantages:

    Wilbers Neubau
    Wilbers Products GmbH

    Frieslandstraße 6 - 10
    48527 Nordhorn

    Managing Directors
    Bernardus Wilbers, André Peters

    Commercial register
    Amtsgericht Osnabrück HRB 130 484
    St.Nr. 235505520321414 | USt.-ID: DE117042508

    Telefon +49 (0)5921 72 71 70
    E-Mail info|at|

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