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