Hi all and sorry for what will prob seem such a srupid question but i have noticed that there seem to be different sizes in brake discs for the golf gti 16v, ive looked on ebay for a quality cheap set but am unsure if they are the:

FRONT DISCS are 5 STUD 280mm Dia x 22mm
REAR DISCS 5 STUD are 226mm Dia x 10mm

OR

FRONT DISCS are 5 STUD 288mm Dia x 25mm
REAR DISCS are 5 STUD 226mm Dia x 10mm

The top set say they are for golf gti 16v mk3 1991 to 1996 but i have a 1997/1998 model (R reg)

Any helpon this would be appreciated

thanks

peter