Might well be piston size. There are 30mm variants and 32mm variants from memory - does it give a caliper piston seal diameter?
GTi/HDi only came with 32, think the 30s were for Saxos and such and possibly the P1s I don't know.
GTi/HDi only came with 32, think the 30s were for Saxos and such and possibly the P1s I don't know.
Night Blue VW Golf 7 GTD : Bianca 306 Rallye : Mini Cooper D (The Mrs')
HDi Owner for 200k/9 years
HDi Owner for 200k/9 years