As you said, Titanium would be too expensive and it’s heavier than an Alloy swinging arm, hence why nobody uses one in MotoGP ( as far as I know).Titanium is the way to go in my opinion. I am sure it will add to the price tag but the quality is undeniable.
Yeah we know.. But this is a new magnesium alloy mix that does away with the old issue of material oxidization suffered by normal magnesium composition parts.MV already makes a Magnesium swing arm for the F4. Its on one of the Specialty F4 models. I have seen it at Fast by Ferracci showroom. Also, BST makes a carbon fiber swing arm for the Ducati 1098/1198 and I think? for the F4.