May 2015 - How I like cleaning stuffs ... now wait ! ... No I hate it !
You wouldn't believe how dirty those calipers were prior the long and detailed clean they went through. The pads were shot to the point one could see the steel frame holding the brake garnish. Someone was apparently still trying to apply some brake with these pads on ... No wonder the bike's been crashed, but what comes next is : how much worse the suffering discs are ? The pistons were marked several times each and required thinning with 1000 sand paper.
The pistons now look saved, let just hope they'll hold their fluid, but the calipers would have done with a quick rattle can finish.