Unfortunately, we can neither authorise nor prohibit the use of child seats on any of our bikes. We have not carried out comprehensive testing of child seats and thus cannot assess if they can be used safely and without damaging the frame.
The installation of a child seat on the seat tube of our aluminium bike frames with thin-walled tubes is not approved. The forces exerted by the child seat may damage or even break the frame beyond repair.
Clamping to carbon-fibre frames is generally not approved. If you do decide to use a child seat, please make sure you do not exceed the maximum system weight for your CUBE bike.