Clear Irons has worked with ADI to develop and enhance various mounting systems for their vast line of backrests. ADI understands the expansive array of user needs in the industry and accommodates; from simple solid mounts to backs that can be quickly removed from the frame with the flick of a lever.
From ADI's website:
ADI offers multiple options in back support mounting hardware; each designed to fit specific needs. Whether you want to be able to remove the backrest from the chair, need the flexibility of adjustment or just want to ‘set it and forget it’, we’ve got your mounting hardware!!!.
photo credits for images 4-7: ADIRIDES