The Orca Gold Electronic is Orbea's flagship road racing frameset, and it's made specifically for use with electronic shifting components like Shimano's Dura-Ace and Ultegra Di2. It comes pre-wired for Dura-Ace Di2. This is what separates it from the Orca Gold. It lacks the alloy cable stops on the side of the head tube and therefore cannot be cabled externally for mechanical derailleurs. The wiring for the shifters runs internally, and it has a dedicated battery mount on the left chainstay so as not to spoil the clean looks and aerodynamics of the front triangle.This is the bike that Orbea supplies to the ProTour riders on Team Euskaltel-Euskadi and the one they rely on when making their signature attacks in the high mountains of the grand tours. While it shares the same shaping and design with the lower priced Orca Silver, the Orca Gold makes use of ultra-high modulus carbon fiber to provide the ultimate in stiffness and lightweight to compliment its sleek aerodynamic properties. The Orca blends all three characteristics in an ideal road racing package. You don't have to pick just two.The Orca has an angular, muscular appearance with flat planes and sometimes pronounced edges where other bikes use more rounded shapes. Its design is the result of FEA (finite element analysis) and Orbea's intent to create resistance to flex in critical areas like the bottom bracket, seat tube, and head tube junction. Orbea uses what they term as SSN (size specific nerve) technology to produce frames that offer the same comfort and performance characteristics across the size range. More specifically, each frame size has specific carbon lay-ups and tube dimensions. This way, a 125lb five foot seven mountain climber doesn't have to suffer the otherworldly stiffness that would be necessary on a bike built for a 180lb six foot four classics rider.Though stiffness is a key priority, Orbea uses some particular shaping in the seat stays and fork legs of the Orca Gold to absorb road vibration. Take a close look at the abrupt bends above the full-carbon dropouts. Their shaping allows some shear movement between the long axes of the straight segments. While this improves comfort over coarse road surfaces, it has no effect on the efficiency of the rear triangle with regards to power transfer. Don't forget, this is the bike that the pros ride. Orbea molds the Orca Gold frame and fork as a monocoque. Each of these is a homogenous structure without bonded joints where failures, either structural or cosmetic, can occur. With fibers running continuously along the length of the tubes and through the intersections, the total strength of the bike is increased along with the durability.The Orca Gold uses a BB30 bottom bracket and a tapered head tube/steerer. Both of these details add performance by increasing stiffness where it counts. At the bottom bracket, you'll enjoy a 30% stiffer and lighter aluminum spindle compared to standard external bearing cranksets. Another benefit is
