A flagship set of components for driving, braking and shifting road-racing bikes. Comprising an electronic gearshift system, a high torque motor for precise shifting, a highly controllable braking system and a smooth drive train. Components dedicated to design into the minutest detail of 1 mm size and 1g weight, allow peak performances even when riding in rain or on uneven roads. This dynamic emotional design combined with lightness and smoothness allows users to intuitively feel the unique performance. Aluminum forgings are gradationally anodized on a mirror-finished surface. Sharp contrasts and a transparent sense express an ode to Japanese esthetics.