Ramsa ws a240 driver replace/repair

Hi guys. I have a pair of Ramsa subs ws a240. Hardly used but old. One of the drivers has split around the foam edge (see pic)
Does anyone know if I can repair this easily or if it needs reconing, if so where to get it reckoned (I'm in the Sheffield/Nottinghamshire area)

Or is there an alternative driver I can buy and drop in that will do same job?

Thanks guys
Help much apriciated.