Brake question

[ringram]

My 2000 UK Spec GTS (R8 Clubsport) brake calipers need sorting out.

I have bust bleed valves on 2 (1 front 1 rear) and probably need new seals on at least those 2 for a good cleanout/reco.

Ive been trying to find the spec's out. Are they pbr or harrop 4 piston? What diameter pistons etc?
Just trying to source some reco kits through a mate in NZ so any information/details/part numbers etc appreciated.

Thanks

[ringram]

"dattoman1000 has exceeded their stored private messages quota and can not accept further messages until they clear some space".

[ringram]

Nick let me know if they are the same.
Mine run 5cm on rear and 6cm on front outside D. No idea on inside piston diameter.
Both 4 piston.

>> Edited by ringram on Sunday 2nd April 14:33

[ringram]

Yeah I meant outside diameter, as in measured with the wheel on, not the actual piston inside the caliper. Which is what I think Harrop mean.
I guess its about 1cm less for the actual piston.