Quick Summary
The Raleigh Avenir OKB018AV Slumber Bicycle Frame Mounted Childrens Seat in Black and Grey is a frame mounted child seat for family cycling. It is listed for childs weight from 9kg to 22kg and is designed for round and oval tubes between 28mm and 40mm. That makes it a practical option for riders who want a mounted seat with clear fit guidance.
Who It Is Best For
This seat is best for buyers looking for a bicycle child seat that mounts to the frame rather than the bike rack. It will suit people who need a seat for a child within the stated weight range and who want to check tube shape and size before ordering.
What To Know Before You Buy
The main things to check are the child weight range and the frame tube type. It is intended for round and oval tubes sized 28mm to 40mm, so suitability depends on the bike you have. The seat is described with fixed dimensions and weight, which may help when planning space on the bike.
Pros: Clear weight range and frame fit details make it easier to assess suitability.
Cons: You should check your bike frame tube shape and size carefully before ordering.
Common Buyer Questions
What type of child seat is this?
It is a bicycle frame mounted childrens seat.
What child weight is it suitable for?
It is listed for childs weight from 9kg to 22kg.
What bikes will it fit?
It is designed for round and oval tubes between 28mm and 40mm.
What colour is it?
It is listed in black and grey.
Does it have any stated safety standard?
It is described as complying with European safety standards EN14344.
Key Details
| Product type | Bicycle frame mounted childrens seat |
| Brand | Raleigh Avenir |
| Model | OKB018AV Slumber |
| Child weight range | 9kg to 22kg |
| Mounting type | Frame mounted |
| Compatible tubes | Round and oval tubes 28mm to 40mm |
| Seat dimensions | Width 416mm x height 724mm x depth 559mm |
| Seat weight | 3.86kg |
| Standard | Complies with European safety standards EN14344 |
| Colour | Black and grey |
Final Buying View
The Raleigh Avenir OKB018AV Slumber is a frame mounted childrens bicycle seat with clear fit and weight details, which makes it straightforward to assess against your bike and your child. If your frame and weight needs match the listed guidance, it is a practical choice worth considering.









