250x40 Knott Backplate Assembly Pair - P000271 (Aftermarket)

1 Pair Of Bolt-On Back Plate Assemblies For Knott 250x40 Drums. 54mm Dia Central Hole. 4x14.5mm Mounting Holes. 71x71mm Hole Centres. Fitted With Maypole Brake Shoes And Springs. Complete With Expander, Adjuster, Eyelet, Half Shell. For Ifor Williams Trailers Made After March 2014. Note: Brakes Should Only Be Serviced And Replaced By Competent Technicians.