Using the most advanced high rigidity and lightweight carbon fiber process The Hyperbike concept Emphasis on high-speed long-distance cruising riding performance Original "aerodynamic spoiler" design According to the original test data, when the RC is at 50 kilometers per hour Saves 17.1 watts and reduces air resistance (CDA) by 5.1% compared to the previous generation XR4! ※Please note that the frame set (without handlebars)