A safe place for your baby
Essential Blue
  • i-Size (R129) safety
  • Smart i-Size car seat Family
  • Comfortable baby-hugg inlay
  • Flexible travel system

Product description

The Maxi-Cosi Rock offers excellent car safety as it complies with the latest i-Size (R129) car seat legislation. Besides maximal safety, the Rock also has a comfortable baby-hugg inlay for a better fit and lying position for the newborn. For the comfort of bigger babies and safety in case of side impact collisions, impact-absorbing material is added to the top side wings. Maxi-Cosi recommends using the Rock with the FamilyFix One i-Size base, providing the safest ISOFIX installation and a highly convenient Click & Go system.


One, two or more cars? Whether your baby only travels with you, with a second car or with your baby’s grandparents’ car, our Maxi-Cosi Rock always fits. The baby car seat can either be attached to the seat of your car by the seat belt or by the ISOFIX anchorage points of your car. The installation is elaborately explained in our user manual, guiding you step by step for a secure fit.

For installation using ISOFIX you will need an ISOFIX base. Connect the base to your car’s ISOFIX connectors and leave it installed in the car. This way, our Rock car seat is fitted onto the base with a simple "click”, every time you need to get in- and out of the car. Visual indicators on the base notify you, when your Maxi-Cosi car seat is correctly fitted and you are ready to "go”.

Rock can be installed in combination with the FamilyFix One i-Size base.

We want you to feel assured about the installation of your baby car seat. That is why we collected our safest travel tips in order to help you as parent to feel sure about your little one’s safety in the car.



At Maxi-Cosi we have carried over 50 million babies home from the hospital. External crash test scores, such as the German automobile organisation ADAC (Allgemeneir Deutscher Automobil-Club), test our Maxi-Cosi car seats on dynamic safety and ease of use.

Maxi-Cosi Rock has been tested by ADAC in combination with Maxi-Cosi FamilyFix One i-Size. The test scores resulted in a good score for all safety tests. Our safe and comfortable Rock car seat is equipped with Side Protection System, meaning that in case of a harmful side impact, Maxi-Cosi Rock’s SPS (Side Protection System) reduces the risk of an injury on your baby.

Additionally, Rock also has improved impact-absorbing material, making the baby car seat compliant with the latest European car seat safety standard i-Size. The best safety for your baby.

Besides safety, Rock also has a good rating in ease of use, because of the easy-to-use Click & Go installation with ISOFIX base. To reduce the risk of incorrect installation we, as Maxi-Cosi, recommend to always install our Rock car seat with the FamilyFix One i-Size base. Most first-time parents install our baby car seats correctly, thanks to the easy Click & Go installation.


A safe place for your baby

Because we care about giving you as a parent the safest car seat, we have designed our Maxi-Cosi Rock to comply with the latest i-Size car seat regulation. By adding improved impact-absorbing material to the top side of each wing, Rock is an i-Size car seat. And a super safe place for your baby in the car.

Besides safety, our baby car seat is comfortable and convenient both for your baby and for you as a parent. The seat has extra padding and includes a comfortable baby-hugg inlay. This inlay is particularly designed for your newborn baby for a perfect fit to enhance comfort and safety.

Click & Go installation - in combination with ISOFIX base – allows you to "click” our Rock onto a base that confirms a correct installation, reducing the risk of doing it wrong. Continue to use the Maxi-Cosi base in combination with a toddler car seat, for longer rear-facing travel. Experts recommend to travel rear-facing up to 4 years, because of the better protection of your little one’s head and neck. Also, a great value for you, since you are able to use the ISOFIX base for up to 4 years!


Removable cover

As our Rock will get dirty after daily use, most likely, or your little one could get car sick at times, Maxi-Cosi’s car seat cover can easily be removed. It is machine washable for easy cleaning, no matter what happens.


Travel system

Going for a fresh walk in the park, a short visit to grandparents or a quick stop at the supermarket? Use our i-Size car seat in combination with stroller by clicking Rock onto it.

Create a complete and practical travel system, by combining our car seat with a Maxi-Cosi stroller for the perfect match.

Maxi-Cosi Rock is approved in the airplane (TUV certification) and can come along on your holidays.

Why choose me

What's in the box
  • Rock, Sun canopy
  • Rock, Baby-hugg Inlay

EASE OF USE Use car’s seat belt to install the Rock baby car seat Use car’s ISOFIX connectors to install the Rock in combination with ISOFIX base unit Cover can be removed, without taking off the harness Cover can be washed in the washing machine Rock is approved for use in the airplane (TUV certification) COMFORT Comfortable seat for baby, with extra padding Additional baby-hugg inlay for newborn baby provides a better fit for more comfort and safety Integrated sun canopy for sun protection SAFETY Side Protection System to protect baby in case of harmful side impacts Improved impact-absorbing material in top side of wings offers i-Size safety 3-point safety harness for a safe and secure fit GENERAL If used with FamilyFix One i-Size base, the base is reusable in combination with toddler car seat Pearl Smart i-Size and Pearl Pro i-Size


Can I install the Maxi-Cosi Rock with base on the front passenger seat?
Yes, you may install the Maxi-Cosi Rock onto a compatible base on the front passenger seat if that seat has ISOFIX anchor points. VERY IMPORTANT to make sure that the airbag has been deactivated. Most cars do not have ISOFIX anchorages in the front passenger seat though.
Can I install the Rock by the car's seat belt?
Yes you can install the Rock by the car seat belt, just like all other baby car seats of Maxi-Cosi. The safety level of an installation by car seat belt gives an ECE R44/04 safety performance though, so we recommend to always use the Rock on any of the compatible Maxi-Cosi i-Size bases in order to achieve the highest, i-Size (R129) compliant safety performance.
Which are the compatible i-Size bases to use in combination with Maxi-Cosi Rock?
The Rock is compatible with the 2wayFix, FamilyFix One i-Size, BabyFix and 3wayFix bases. In combination with any of the aforementioned bases Rock complies with the stringent i-Size (R129) safety regulation.
Can I adjust the height of the safety harness?
The height adjustment of the safety harness is regulated by means of the baby-hugg inlay. For newborn babies with a maximum lenght of 60 cm the baby-hugg inlay should be used in order to ensure the perfect safety harness height in the shoulder area. For babies with a length as from 61 cm up to 75 cm we recommend to remove the inlay. This way the lying position is lower providing a perfect safety harness height in the shoulder area again.
How do I remove the Rock from my stroller?
You can remove the Rock from a stroller by pushing simultaneously on two grey buttons that are located just next to the carrying handle on the side of the car seat and pulling the seat in an upward direction. Please make sure you always place the car seat rearward facing and not forward facing on the stroller. In combination with Maxi-Cosi and Quinny stroller frames the Rock is very easy to release with one hand thanks to the memory buttons.
The Maxi-Cosi Rock complies to the i-Size (R129) regulation. What does that mean?
i-Size (R129) is the latest active regulation that aims to make car seats even safer than before. i-Size (R129) car seats offer ISOFIX installation, rearward- or lateral-facing travelling up to at least 15 months, and improved safety standards for additional protection for head and neck. To find out more about i-Size (R129) you can follow this link:
What accessories for the Rock are available?
Maxi-Cosi offers these accessories for the Pebble Plus: footmuff, summer cover, rain cover and mosquito net. Please visit the Maxi-Cosi website for more information.
When should I remove the Baby-Hugg inlay from the Rock?
The baby-hugg inlay is especially developed to offer additional comfort and safety for small babies. A baby outgrows the baby-hugg inlay on average when he/she is around 60 cm tall. You can consequently remove this inlay from the Rock and use it without.
Where can I find the integrated sun canopy on the Maxi-Cosi Rock?
On the back of the Rock coming out from the rim you will find two small taps that are attached to the sun canopy. You can pull on these tabs to extract the sun canopy and attach it to the carrying handle.
Why is the classification on the Maxi-Cosi Rock indication in height (or cm) indication and not in weight (or kilo)?
The Maxi-Cosi Rock complies to the latest i-Size (R129) regulation and this change is part of i-Size. It is done in order to make it easier for parents to choose the right car seat for their child, and thereby minimize premature up-sizing of the car seat. The Maxi-Cosi Rock is for babies from birth to 75 cm tall.
Why is there a 12KG weight limit on the Rock instruction sticker?
In i-Size (R129)  child car seats are classified in a length size range, but the regulation also requires to indicate a maximum weight of the baby. The Rock is suitable for babies from birth (approx. 45 cm) until 75 cm. The 12kg weight limit on the Rock refers to the 95 percentile weight of a child of 75 cm. This means that only 5% of the children will be over 12kg weight by the time they reach 75 cm.
Can I wash the baby-hugg inlay and cover of the Rock in my washing machine?
Yes you can wash both the baby-hugg inlay as the cover of the Rock in your washing machine but at maximum 30 degrees and using a delicate washing program.