With the exception of the obvious answer "try Peterborough" I'd appreciate the views of the forum as to where you go for a reliable supplier for "generic" spares such as CV joints, chains, wheel bearings etc for Prosport's
Most of the parts are standard Ford. Chain, take your pick any Good chain 530 chain will do from Bike suppliers (DID ZVM2) I use. Can't find it at the moment but Rob has a site giving the details of most parts.