Organic Semi-Metallic brake pads Magura 5.1 , 5.2 , 721340 , 721672 Marta 2008 and older, Marta SL 2008 and older. Clarks Skeletal / EXO Semi-Metallic / Steel Back Plate Marta 2008 and older Marta SL 2008 and older Clarks Skeletal / EXO magura type 5.1,5.2 , 721340 , 721672