Zipp Service Course SL +/- 6 deg Stem Bike Accessories_Top-Tube Bags the amount of aerodynamic drag

the amount of aerodynamic drag the helmet creates is strongly reduced

Excellent ventilation with 5 air inlets and 8 air outlets

Light action shifting for stress-free long riding

and 80 mg of magnesium per liter)

Zipp Service Course SL +/- 6 deg Stem Bike Accessories_Top-Tube Bags the amount of aerodynamic dragThe Zipp Service Course SL Stem, crafted from 7075 aluminum, features a shape thats strong and lightweight, resulting in a 1. 85 grams per newton meter of stiffness. That results in no flex sprints and accelerations. Forged AL 7075 Machined and relieved faceplate Features titanium hardware with TORX heads on all bolts for precision torque readings and ease of adjustment Beyond Black anodized with black logos