In this case, you can loosen the locking pin again with the help of a slotted screwdriver. To do this, first remove the plastic cap at the end of the drawbar. A slotted screwdriver will also help. The locking pin is connected to a spring plate inside the drawbar, if you place the screwdriver between this spring plate and the outer wall of the drawbar, you can push the locking pin inwards and thereby unlock the drawbar. Hold the locking pin in this position and pull the drawbar out of the drawbar bracket.

The accessories available from us also enable the universal coupling to be attached to bicycles with special rear wheel types or frame geometries.

What type of rear wheel do you have?

1) Quick release
2) Thru axle
3) Solid axis

Quick release

The universal coupling is attached between the frame and the quick release nut or clamping lever. If the quick release axle is too short to generate sufficient clamping force, there are three options: 

        1) Quick release with polygon adapter PA5x0.8 (thread type: M5 x 0.8) 

        2) Quick release axle M5 175mm 

        3) Quick release with coupling anti-twist lock

The coupling anti-rotation device (KVS) prevents the coupling from twisting and keeps the quick release in a fixed position, which offers additional stability.

The coupling anti-rotation device is available in 4 different sizes: 4mm, 8mm, 10mm and 15mm.

These sizes create a gap between the coupling and the bicycle frame (dropout) if the geometry of the frame requires this.

The quick-release axle must be long enough to secure the 5 mm thick contact surface of the universal coupling with sufficient clamping force. If this is not the case, there are suitable accessories. The following values ​​are decisive for the selection of the correct adapter:

      a) Axle length 

      b) Thread type 

      c) Diameter of the thru axle

       1) ST-214: thru-axle adapter M12x1 (length: 160-172; thread type: M12x1; diameter: 12mm; sleeves: 6mm               conical and 6mm)

It's best to ask your bike manufacturer. The thread pitch can also be determined very easily yourself, simply put a ruler and measure the distance of 10 thread pitches. 

         Distance    Thread 

The universal coupling is attached between the frame and the nut. If the thread length is too short to generate sufficient clamping force, there are suitable polygon adapters that are screwed directly onto the solid axis:

         1) Polygon adapter 10.5x1 (thread type: M10.5 x 1) 

         2) Polygon adapter 10x1 (thread type: M10 x 1) 

         3) Polygon adapter 38x26 (thread type: 3/8 x 26

It's best to ask your bike manufacturer. The thread pitch can also be determined very easily yourself, simply put a ruler and measure the distance of 10 thread pitches. 

If the assembly of the universal coupling is not possible due to the geometry of the bicycle, the following special solutions are available:

               a) Connection of the universal coupling URS for bike stands with 18 mm hole spacing                    (11 mm to 25 mm) - KUURS-18

               b) Weber - special coupling solutions

               c) Robert Axle Project - thru-axle specialist

     Alternatively, the URS coupling for bike racks (KUURS-18) can be used. This can be attached       directly to a bicycle stand with 18 mm hole spacing using longer screws.

     You also need the right  

     Weber couplingWeber coupling E-coupling (KU.02.000.00) 

     Weber ER coupling (KU.02.000.11) 

     Weber B-coupling with stand (KU.01.000.00)

In winter, the splash protection should also be closed and only the side ventilation window should be opened. 

Always make sure to dress the children according to the season.

For longer journeys in the rain or in heavy rain, we recommend the use of the optionally available rain cover, as this offers more comprehensive rain protection.

In addition, the quality and safety of our products are our top priority. In order to also meet possible future requirements, we immediately decided as a precaution not to use the material for the darkened side windows. We have switched to a supplier that offers darkened TPU films that are free from flame retardants. The absence of harmful substances has already been confirmed to us by TÜV Rheinland.

However, the flame retardant TDCP was only used in the side window, where constant contact with the children is not to be expected. The fabric cover, the bench and the belt system are free of flame retardants, which has also been confirmed by TÜV Rheinland.

We consider this scare tactic based on arbitrary evaluations to be wrong. On the one hand, Stiftung Warentest does not evaluate the product as a whole, but only takes individual parameters. Non-safety-relevant aspects are placed in the foreground by the assessment, although the focus should be on safety during transport. On the other hand, the evaluation is not based on legal requirements, but on scientifically unsound evaluation standards.

When looking at other companies that have had a similar experience in the past, it unfortunately becomes apparent that a public dispute with Stiftung Warentest does not bring legal success. Even if the facts speak for us and we win the argument in terms of content.

We would like to emphasize: All of our products have been tested several times for high stability, solid workmanship, good handling and harmless and sustainable substances and materials. They meet the legal requirements and can be used without hesitation. When purchasing our materials, we always ensure that the suppliers comply with the legal requirements, such as those stipulated by the EU chemicals regulation REACH, the relevant standards EN71, EN15918, or the GS specification. There are no references to the flame retardant TDCP in any of these catalogs of requirements. We agree with the assessment of the legislature and the specialist committees and see no risk when using the tested bicycle trailers from Qeridoo. A restriction for TDCP is only intended for children's toys, of which our products according to Appendix | Item 5 of the Toys Directive 2009/48 / EC are expressly excluded.

TDCP is also present in carpets, for example. These products are also safe to use, although longer-term contact with children is to be expected.

Nevertheless, we immediately decided not to use the material for the darkened side windows anymore. We have switched to a supplier who also offers darkened TPU films that are free from flame retardants. The absence of harmful substances has already been confirmed to us by TÜV Rheinland.

TDCP is used as a flame retardant and is often found in furniture and carpeting, for example. In principle, TDCP should not be rated negatively, on the contrary - it prevents the materials from catching fire easily. TDCP is currently suspected of having a carcinogenic effect in humans. However, there is still no scientific evidence of toxicity for this. A precise assessment of this substance should take place in 2020.

Since TDCP is only sparingly soluble in water, a piece of the window fabric would have to be swallowed in order to actually absorb the pollutant. However, since it is a particularly resistant material, it is almost impossible for a child to tear off part of it. Even for an adult, this would be a major challenge.

For the production of the Kidgoo1 and Kidgoo2 models, we took on a new supplier for TPU films at the beginning of the year. This supplier met all legal requirements. We were not aware of the use of TDCP at the time. Since there is no legal basis that includes a ban on TDCP for bicycle trailers, this was not checked either. Stiftung Warentest has established its own test criteria that are based on toy guidelines. Child bike trailers are excluded from the Toy Directive 2009/48 / EC in accordance with Annex | Point 5.

We basically have several suppliers for the TPU films for the side windows. After internal tests, the new supplier that was added in early 2019 turned out to be the only supplier using TDCP. Thereupon he was excluded from our circle of suppliers. Only TPU films without TDCP have been used since mid-May. Up to this point in time mainly Kidgoo models were produced. However, we cannot rule out that Sportrex models with TPU films were also produced by this supplier.

In principle, pollutants are only included in the evaluation with 5%, since the Stiftung Warentest, however, assigns a deficiency in the area of ​​pollutants due to the only suspected flame retardant TDCP, according to the Stiftung Warentest's own evaluation method, a better final rating cannot be achieved. 

The good results in the area of ​​safety, handling and driving are therefore not included in the final evaluation! It is incomprehensible to us that after this evaluation procedure a bad result in the area of ​​security does not lead to such a strong devaluation. In the area of ​​safety, we were even able to achieve the second best result in the test. Unfortunately, Stiftung Warentest only rates this elementary topic with 10%.