The easton ec90 sl carbon stem is incredibly lightweight with a carbon construction adding impressive strength and stiffness for supreme handling and durability weighing in at just over 110 grams this fantastic stem from easton will never leave you wanting and is packed full of features and technology that guarantees high performanceincluded in the easton ec90 sl is the brilliant dst technology which reduces the bike stem clamping stress by changing the shape of the interface between the