The new ENVY v5 starts where the v3 left off. It utilizes the same World Championship winning geometry, but gets an all Brand new 7005 Ultra Lite Race Triple Butted tube set. All brand new molds for the top and down tube to increase strength and rigidity as well as maximizing dent resistance. The top tube and down tube are larger at the head tube to better support the all new 1 1/8Ē - 1.5 Tapered head tube, the center sections are thicker to increase dent resistance, and the downtube is wider at the BB shell to further enhance pedaling efficiency. The top tube is now a tapered tear drop shape with a flat ridge bottom to maximize strength and minimize weight, the seatmast is a wider bulge butted piece , the rear stays are tapered and butted. Until you get one of these frames in your hands, you canít begin to believe the amount of time that goes into each frame size to make the most efficient use of the tubing shapes and walls to built you the worlds finest racing machine.