Apidura Racing Top Tube Bag 0.4L Grey

The Apidura Racing Top Tube Module 0.4L is designed as an aerodynamic module for gravel racers looking to gain speed. Developed through extensive CFD analysis, it smooths the airflow behind the stem and improves aerodynamic efficiency, especially when paired with the Aero Frame Module for an average gain of approximately 5 watts at race speed. Its ultralight construction from TPU laminated Hexagrid material offers excellent rigidity and a well-maintained shape while limiting weight. The single main compartment closes with a magnetic opening, allowing quick, one-handed access to gels, keys, or electronic devices during effort. Integrated transfer panels conform to the shape of the stem and top tube for a clean, aerodynamic integration, while the soft internal base protects the contents.