How about with a ruler then? Tape measure? Cut a piece of string the same length then mail it to me?

I measured mine (piston diameter) and I think one pair I had was 30mm and the pair I chose to rebuild was 33mm as I recall. Hope this helps, I do know for certain there are at least 2 different sizes.

I'm glad someone is talking about this! I've been slowly building a pile of parts in my basement to thrash on my wagon, and a complete brake overhaul is in order; rebuild calipers, new lines, new pads, rotors, Motul RBF600. Still a ways off on actually putting it all together, but I have chosen the paint (Not sure what temp powder is good to...)

 

VHT has some really nice sounding rattle can paint that is resistant up to 900*F, and is impervious to brake fluid and solvents. I have yet to spray the calipers, but I will post pics when complete, whenever that happens.

Edited November 22, 201015 yr by carfreak85

I'm having trouble gettting the new brake piston boot to fit, any tips? I got it in without the piston but once I try with t the piston I cant get it locked in the little groove.....any tips...

 

 

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