The Zipp Service Course SL Stem is a lightweight and versatile piece of equipment that can help any rider find their ideal riding position. Input from professional riders across all disciplines lead to the development of this stem. It is made with a lightweight high grade aluminum build that remains incredibly strong on all terrain. With an outstanding stiffness to weight ratio, it is great for sprinting and climbing alike. The Zipp Service Course SL Stem is ready to help you achieve the perfect riding position and perform at a high level for a long time.