From its full Shimano drivetrain to its bombproof Fulcrum wheels, the Ridley Helium C20 Complete Road Bike is built for the aspiring racer whose ambitions aren't captured in the marketing copy of the latest aerodynamic wonder toy. The Helium isn't made for the wind tunnel life instead, it's built for a ride that's efficient on climbs and sprints that won't shake you to pieces on rough roads at racing speed or while taking your paces through base miles. The Helium's namesake element happens to be one of the lightest on the periodic table, and the design of the frame reflects this, with a size medium weighing a claimed 880 grams. Ridley hit this low weight by blending two moduli of unidirectional carbon, 30T and 24T, in a strategic layup designed to keep weight down without sacrificing durability or stiffness. The tapered head tube contributes to this stiffness while you're hammering or climbing the Helium's favorite pursuit while also netting precise steering and laser guided tracking through corners and swooping descents. The Helium's thin, slightly flattened seatstays and standard 27. 2 millimeter seatpost prove that these designs, contrary to the industry's marketing materials, are just as valuable to a comfortable ride today as they were when the need to sell new model years pushed other manufacturers to innovate with bizarre shapes and materials. The rear triangle devours road noise and bumps like Helium's halogen cousins gobble up other molecules' electrons. We'd like to say that the surprisingly precise action of Shimano's new 105 drivetrain featured here in all its 11 speed glory takes us back to the days when we first tried Dura Ace. But we can't. With all the technology that's trickled down the Ultegra pipeline from the Dura Ace source, the new 105 is every bit as sharp as the models ridden in the peloton as recently as a few years ago. As your abilities begin to eclipse your current ambitions, 105 will continue to grow with you.