[Civication]

I'm surprised. Is the EP3 same as the FN2? I remember the derv caliper being just smaller all together. But I don't have both of them any more for a comparison. Maybe you could post the piston diameters here?

 

[Civication]

This is a bit of an old thread, sorry to bring some life back into it, but I know the EP3 piston is 54mm I'm pretty sure the FN2 is the same, due to the calipers being almost identical, did anyone find out if the diesel piston is the same size?

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Diesel pistons are smaller.
I did a lot of brake comparisons in the past for upgrading my Derv to either FN2, Brembo or Stoptech 300mm touring kit, as I had a sample of all of them.
Can't find the stats I wrote down now but the FN2's have much larger pistons. Shame I've lost them meant to post them up ages ago. :facepalm: