The GALLIUM PRO comes with a standard English threaded bottom bracket shell. ARGON 18 also has a BB30 version,which is not available to the U.S market at this time.
The engineers at ARGON 18 have developed a new mold that maximizes lateral stiffness with massive, asymmetrical chainstays as well as very large bottom bracket and head tube dimensions.
Utilizing the 7000 HM carbon which was developed around the larger tube diameters of the new Gallium and Gallium Pro mold. This composite, along with the HDS principles that guided the frame design, lets us obtain the most vibration damping from the upper frame while still allowing maximum stiffness in the lower areas where it is critical for efficiency. If the rider can produce the power, this bike can respond in kind.
The new monocoque carbon Ga31 fork uses a conical steer tube with 1’’1/2 and 1’’1/4 bearings and features an integrated crown race that boosts rigidity while reducing weight
We built this particular frame with SRAM RED, which is top three in our choice of high end groups. We also decided to put on the SRAM S40 wheel set just because we thought they looked great, but then while testing the bike we were pleasantly surprised as to how well these wheels roll!
With a lower BB shell, stresses in the down tube are more vertically distributed. This lessens the tendency bikes have to lift the front wheel under hard accelerations on steep uphill sections, so the rider can concentrate on the effort in breaking away without any concern about a squirrely handling bike. On descents, the forces experienced by the down tube and seat stays take a more vertical path, helping to keep the wheels in contact with the road.
The 2011 Gallium Pro is offered as an integrated frameset, including the carbon monocoque Ga31 fork, the Argon 18 ASP-6000 carbon seat post and the 3D headset.
After riding this machine, we can safely confirm that this newest version of the Gallium Pro will please sprinters as well as anyone capable of putting out serious power.