Child’s 4-bar Knee

Suitable for outdoor use
Activity Level 1 2 3 4

The Endolite Child’s 4-bar Knee is designed for an active lifestyle. Featuring a polycentric design for stability during stance and an adjustable extension assist spring to provide swing control. It is a durable, lightweight and low maintenance knee designed for energetic children.

Available with a choice of proximal adapters including a Lamination Socket Adapter Kit, allows for A-P shift or an M30 Threaded Adapter Kit, both are ideal where a minimal build height is required.

The knee features a 25mm diameter distal clamp, easy replacement of the pylon length, allows the system to grow with the child.

The 4-bar knee can be used with a variety of feet including the new Endolite Mini BladeXT. This multi-use children’s foot offers outstanding stability, ground compliance and improved comfort through the split toe and traction sole, while its C-shaped toe spring is primed for optimal energy response.

Paired together the 4-bar Knee and Mini BladeXT make an unstoppable combination for children on the go.


  • Polycentric knee for stance stability
  • Adjustable extension assist spring
  • Wide range of alignment
  • Low build height

Technical Data

Max. User Weight


Activity Level


Component Weight


Build Height



Max. User Weight: 60kg (132 lb)
Activity Level: 1-4
Component Weight: 335g (12 oz)
Build Height: 105mm (4 ⁹/₆₄)


Suitable for outdoor use


Part Number: 

Child’s 4-bar Knee with 330mm tube – 019245
Child’s 4-bar Knee without tube – 239133

Proximal Attachments

4 Prong Lamination Anchor – 189626
M30 Threaded Adapter Kit – 189726
Lamination Socket Adapter Kit – 189126

Distal Attachments

25mm Pyramid Pylon Adapter – 409099
25mm Tube Clamp Adapter – 189526
25mm Carbon Fiber Pylon 180mm – 330129
25mm Carbon Fiber Pylon 254mm – 330126

An annual visual inspection is recommended. Check for visual defects that may affect proper function. Maintenance must be carried out by competent personnel.

Blatchford trademarks.

Last updated: 6th November 2018

Share this page: 

We use cookies on this site to improve your experience. By continuing to browse the site you are agreeing to our use of cookies. Find out more