Caliper piston diameter

[dhdev (Oli)]

Does anybody know the diameter of the pistons on an ATE pin sliding caliper (the ones commonly used on 16v brake upgrades for nova's)
I also need to know the rear wheel cylinder piston diameter.
Help will be much appreciated, no guesstimates please.
Cheers http://www.migweb.co.uk/forums/images/smilies/beer.gif

[Adam]

Piston diameter is 52mm.
Not sure on the rear wheel one.

[dhdev (Oli)]

Cheers for the confirmation :thumb:

Stuart, aka font of all knowledge, posted a link on migweb for me, it said 52mm front (48mm for standard calipers) and 17.5mm rear

[Stuart]

w00t sig quote there :D