clio brakes

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...

Wondering if anyone can help please! Got a problem with my 200, it's been sitting for about a month, I went to drive it last week and the battery warning light came up with the stop light illuminated. I have since replaced the battery with a brand new one. Same thing happening! Does all this...