The Primo VS Rim is the renewed model of the 7series and has undergone several changes. It is a two-walled and full CNC doublewall (ground in the joint) with anodizing and 36 holes made of light and strong aluminum 6061 series aircraft type. The 7series has the holes farthest to the sides so as not to distort the lateral pressures while its weight is negligibly heavier at 445 grams.
