- 1 pair of bolt-on back plate assemblies for Knott 200×50 drums
- 58mm dia central hole
- 4×12.5mm mounting holes
- 50x69mm hole centres
- Fitted with brake shoes and springs
- Complete with expander, adjuster, eyelet, half shell, 4 x M12x20mm fixing bolts
- For Ifor Williams horseboxes and trailers made after January 1996
Note: Brakes should only be serviced and replaced by competent technicians