Pair of 250x40 Back Plates for Trailer Brake Drums

Restore your trailer's braking performance with this Pair of Pre-Assembled Bolt-On Backplate Assemblies, specifically designed for Knott 250 x 40mm Auto-Reverse braking systems. Suitable for Ifor Williams trailers manufactured after March 2014, these complete assemblies are supplied as a matched left and right-hand pair, fully assembled with Maypole brake shoes, springs, adjusters, and expanders for fast, professional installation.

Manufactured to OEM-quality European standards, each backplate is factory-fitted with all major braking components, eliminating the need for time-consuming assembly. The bolt-on design incorporates the standard 58mm centre bore and 4 × 14.5mm mounting holes with 71 × 71mm hole centres, ensuring precise fitment to compatible Knott axle systems.

Fitted with asbestos-free brake linings and manufactured to ECE R90 approved standards, these ready-to-install assemblies deliver dependable braking performance, long service life, and reduced maintenance downtime.

• Pair of complete left and right-hand brake backplate assemblies
• Designed for Knott 250 × 40mm Auto-Reverse brake drums
• Suitable for Ifor Williams trailers manufactured after March 2014
• Pre-assembled with genuine Maypole brake shoes and springs
• Bolt-on installation for quick and straightforward fitting
• Includes brake expander, adjuster, eyelet and half shell
• Factory-fitted spring assembly
• Asbestos-free brake linings
• Manufactured in Europe to OEM specifications
• ECE R90 approved for reliable braking performance

Product Type: Pre-Assembled Brake Backplate Assembly Kit
Brand: Maypole

Brake System

• Brake Drum Size: 250mm × 40mm
• Brake Type: Auto-Reverse
• Configuration: Left & Right-Hand Pair

Compatibility

• Knott 250 × 40mm Brake Drums
• Ifor Williams Trailers (Manufactured after March 2014)
• Commercial Trailers
• Agricultural Trailers
• Heavy-Duty Towed Equipment

Mounting

• Centre Bore Diameter: 58mm
• Mounting Holes: 4 × 14.5mm
• Hole Centres: 71 × 71mm
• Mounting Type: Bolt-On

Components Included

• Brake Shoes (Pre-Fitted)
• Return & Tension Springs
• Brake Expander
• Brake Adjuster
• Eyelet
• Half Shell

Brake Linings

• Asbestos-Free

Compliance

• ECE R90 Approved

Condition

• Brand New
• Factory Assembled
• Security Sealed

• 1 × Left-Hand Pre-Assembled Brake Backplate
• 1 × Right-Hand Pre-Assembled Brake Backplate
• Complete Brake Shoe & Spring Assemblies
• Brake Adjusters & Expanders
• Eyelets & Half Shells

• Ifor Williams Trailers
• Commercial Trailers
• Agricultural Trailers
• Plant Trailers
• Livestock Trailers
• Heavy-Duty Towed Equipment
• Knott Auto-Reverse Braking Systems

• Complete ready-to-install brake assemblies minimise installation time
• Restores safe, balanced braking performance
• OEM-quality European manufacturing ensures precise fitment
• Factory-assembled components reduce installation errors
• Asbestos-free friction material provides safe, dependable braking
• ECE R90 approved for assured braking performance
• Ideal for routine servicing or complete brake refurbishment

• Pair of Complete Backplates
• Knott 250 × 40mm Compatible
• Auto-Reverse Brake System
• Bolt-On Installation
• Pre-Assembled Brake Shoes & Springs
• OEM Standard Manufacture
• ECE R90 Approved
• Asbestos-Free Brake Linings
• Fits Ifor Williams Trailers (Post-2014)
• Genuine Maypole Components

Securely packaged and dispatched same working day if purchased by 1 p.m.