I am very aware of the delta pad, Bianchi girl. They are unique to only the two models of deltas produced. Along with there toe-in allen screws. My only interest is in the compound used to produce the new pads verses the original pads. I realized they are new pads and not NOS. But if the compound/rubber is the same makeup as the original ones were, then they aren't worth the money even though you have no choice. The compound used in pads makes a huge difference in braking performance. Modifying a proven, quality, modern pad to work on a delta would do wonders in improving their inherent design problems.