Deda extensions spacer kit is crafted from lightweight extruded 6061 aluminum and offers six stack heights - 20, 40, 60, 80, 100, and 120 mm - for a fully customizable aero cockpit. With a 30 degrees angle for an optimized forearm position and aerodynamic efficiency, it’s compatible with Deda Jet 2 Evo, Jet 2 Hydro, Fast Pro, Parabolica Pro extensions and TT314 clip-on. The ideal upgrade for serious time trialists and triathletes seeking fit and speed in perfect balance.