Crupi's I-Beam stems are CNC machined from 6061-T6 billet aluminum and are amongst the lightest weight stems on the market! With extensive machine work, the design is visually appealing yet stiff and strong preventing most torsional flex! Dual opposing pinch bolt design and a front loading cap making bar installation easier. Multiple sizes/reaches including 0mm, 27mm, 25mm, 45mm, 52mm and 60mm. Available now!