Pro PLT Alloy Oversize Road Stem: High performance lightweight & stiff 2014 forged alloy oversized stem. 2014 forged aluminium is a high strength aluminium alloy commonly used in the aircraft industry & a wide variety of high strength engineering applications making it the ideal choice to produce this lightweight, strong & reliable stem. Oversized 31.8 mm clamp diametre reduces unwanted flex under high load by increasing strength & stiffness. Reversible design with +10 / -10 degree rise For 1-1/8 inch diametre steerer tubes Average weight 125 grams for 110mm length