In order to increase both lateral and torsional stiffness of the ALU mast, we have redesigned a new mast profile and mould. The new mast now has a maximum thickness of 18mm and its profile is also proportionally thicker towards the trailing edge in order to minimise twist. We have also introduced a new middle stringer structure in between the two screws that have allowed a higher lateral stiffness. The incorporated top plate is smaller and shorter than the Y25 UNIVERSAL ALU MAST resulting in a lighter weight. The new ALU mast has an unparalleled TWIST of only 2,2 cms, feeling as torsional stiff as a full hi-modulus M40J Carbon mast !!!