The springs on mine are not fully decided yet as im still testing them but i think at the mo they are 250 or 230 on front and 250 on rear. Mine are different to other clios on the rear because of the different position of the spring! He told me that 700lb on the rear is way way to much!!! no matter where the spring was put! he said its not right. Yes you can specify the spring rates you like when you buy them and im sure you will beable to buy the rears separately. not quite sure why but whatever!