Stack and reach will put you in a race position for out-and-out performance, yet allow comfort for a long ride. The lower end of Magma’s seat tube tapers out to blend smoothly into the bottom bracket – this increases stiffness for best drivetrain efficiency, but not too stiff that traction is lost on small bumps and ruts in the road – while the thinner round upper part of the seat tube brings you some comfort. They work with the tall, thin seatstays, which flex to absorb road buzz and deliver built-in long-ride comfort.

More aerodynamic means riding faster under the same rider’s power output, but it also means the rider can save energy at the same given speed. AURUM’s engineering team focused on the aero profile development for the headtube, downtube and fork legs – the primary surfaces to battle the aero drag. They were carefully shaped and optimized using computational fluid dynamic (CFD) software – individually for each size.

AURUM’s engineers chose to work with NACA airfoil profiles for the headtube, downtube and the fork legs. Their trailing edges of these airfoils are truncated – reducing weight and volume – at different depths depending on the frame size and the torsional stiffness needed.

Together with the advanced tube shaping, another aero-efficient design feature of the Magma is the Head Tunnel; the built-in tunnel in the head tube that subtly channels the brake lines (and electric wire in a Di2-equipped bike) into the frame. By using this design, the frame structure of Magma remains fairly simple, light and strong. The Head Tunnel design allows using standard and lighter headset, stem and handlebars when compared to other more complicated internal cable routing designs in the market. This design decision makes the bicycle easier to assemble and service, important when packing for travel, but also when trying to fit different riders to find their best biomechanical position for high-performance.

The airfoil downtube of the Magma has been sized and proportioned individually for each frame size, connecting the headtube and wide BB386Evo bottom bracket for maximum torsional stiffness, but also featuring a mid-tube section width that shields the water bottle, thinking for the best integration and aero-efficiency of the complete bicycle under real-life conditions.

Magma prototypes were tested in the wind tunnel to validate the computer generated CFD shapes, gathering valuable information for different frame sizes and setups, to finalize the small details that can make significant performance differences – to deliver you the fastest possible bike.

That being said, weight was never overlooked, and in fact was always highly considered when designing the frameset as an assembly. A frame and a fork is only part (the biggest part, for sure) of what Magma has to offer, because every frameset is delivered along with another 20 parts, such as thru-axles, headset covers, fork expander, derailleur hangers and more, all of which have been designed and developed exclusively by AURUM using the best materials.

As for the frame, every Magma is handmade using a complex combination of different grades of carbon fiber, selected as the most appropriate for the various stresses experienced in different sections of the frame. Multiple prototypes were produced and tested using different carbon grades, orientations and resin types, to find the optimum blend.

The combination of Contador and Basso’s riding experience with the AURUM carbon engineers’ skills in manufacturing results in the ECT (Experience Carbon Technology) carbon layup. It’s efficient, with minimal material overlap and waste – making every frame light and strong. Made on high precision, machined steel molds, the precise surfaces are perfectly aligned, requiring little preparation for painting.

Latex-covered foam mandrels are used for optimum material compaction and resin flow, leaving the inside of every Magma frame free from crumples or mold residue. It’s strong, stiff, and light – just 805g (size 54).