High performance lightweight oversized alloy 7075 t6 stem as used by the top pro tour riders3d forged 7075 t6 alloy construction increases strength and keeps the weight downtriangular design gives optimal stiffness to weight ratiooversized 318 mm clamp diameter reduces unwanted flex under high load by increasing strength and stiffnessangle 10 degreesfor 1 18 inch diameter steerer tubesaverage weight 120 grams for 110 mm length