Towbar, Caravan & Trailer Spares & Accessories

Knott Automatic Adjusting Brake Shoe Kit 250×40


Only left in stock

Genuine Knott NEW AUTOMATIC ADJUSTING Brake Shoe Kit for one AXLE (two sets of brake shoes) for Knott brakes.
250mm Diameter Drum, 40mm Brake Shoe Width. Type 25-2025

Kit Includes:
2 x Complete pre-assembled brake shoes ready to fit. (Includes all springs, adjuster and expander)

It is possible to upgrade to this new AUTOMATIC ADJUSTING BRAKE SYSTEM if your existing Knott brakes were manufactured after 2013.

Please click above to see if you have the correct backplate to upgrade

Only left in stock


Knott Automatic trailer brakes

  • The Knott patented automatic adjusting control system offer consistent and smooth braking action every time
  • All shoes wear equally and consistently: braking is smooth, therefore there is less wear and tear on the towing vehicle and trailer leading to stress on the coupling overrun damper.
  • Likewise, with reversing, poorly adjusted brakes can become a problem, trailers can be shunted and linkages and overrun couplings damaged. With braking performance assured, reversing will become trouble free as the automatic adjustment system simply disengages
  • No need to manually adjust the shoe lining; adjustment happens automatically and instantaneously compensates for for brake shoe lining wear.
  • Trailer inspection and servicing consequently much quicker, checking for lining wear (are replacements required?) but no need to adjust.
  • For hire vehicles, this should increase the service interval and braking performance is not compromised during a reasonable hire period.
  • Should the vehicle and trailer combination ever be the subject of an off road check, the brakes will be properly adjusted and the handbrake working etc.
  • Available as a retrofit kit on Knott 250 x 40 brakes and it’s easily installed.
  • Tested and approved to 71/320/EEC and UNECE R13 on the current Approval
  • All mounting dimensions (250×40) are identical to the current model

Additional information



MPN 409931.001


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Further Assistance

Have a question about our Knott Automatic Adjusting Brake Shoe Kit 250×40? Our sales team are here to help Monday to Friday 9am to 5.30pm. Why not call us on 01392 216336.

Should you prefer to email us, please use our product enquiry form.

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