Designed for use on 200x50mm, 203x40mm & 250x40mm brakes only.
The Knott 45309 Brake Expander is a GENUINE KNOTT PART.
The brake cable Eyelet fits onto this expander.
When the brakes are applied, the cable pulls the eyelet, which in affect then pulls the brake expander.
This makes the brake shoes expand and apply the brake to your trailer.
Please Note – This part will NOT fit the Knott 160x35mm trailer brake.
