rear brakes

Hey all! I've got a sticky rear caliper so I'm considering replacing both at the same time. I'd rather buy new if possible over refurbing a used pair myself. What am I going to lose going for a more affordable aftermarket caliper versus Renault/TRW? There are a few sellers in the UK offering...

Hi all I am currently finishing off my Clio 197 to compete in rallies in The Netherlands. However I have a problem with the brakes. When braking my rear brakes lock up very easily, like I don't even have to brake hard for it to happen. There is already a rear brake bias installed, but when...