Swix Triac 4.0 Aero is the result of continuous research, testing, analysis, experimental trials, and process improvements. Performance, and nothing else, has been the focus. The new tube has a completely new cross-section, giving optimum stiffness properties and reduced wind drag. Stiffness is increased by more than 15% versus its predecessor, the Triac 3.0. Wind tunnel testing confirms up to 20% reduced drag coefficient in critical areas of the tube compared to tubes with a cylindrical cross-section. The Swix Triac Aero is 100% adaptable to the Swix TBS and TCS systems allowing top performance in all possible conditions.