A flagship set of components for driving, braking and shifting of road-racing bike. It consists of electronic gearshift system for light and precise shifting, highly controllable braking system with unique cam mechanism, smooth drive-train with high rigidity and so on. Each form represents dynamic and emotional characters with lightness, rigidity or smoothness that enable users to feel intuitively the unique performance. Aluminum forgings with core technology are anodized with two colors on the mirror-finished surface. Thus sharp contrast, tasteful transparent sense and feeling of depth are expressed together aiming at Japanese esthetics.