Cinelli mash stem 75 degreesthe mash stem is constructed from 6066 t6 aluminium alloy that has been cnc machined both inside and outside in order to obtain a variable wall thickness that gives optimal stiffness to weight ratio the mash stem plate features an etched lightning bolt with cinelli logos featured on the side the 75 degree angle is steep and aggressive to give optimum performance and great aerodynamics features material body al 6066 t6 faceplate al 6061 clamp diameter bar 3