This case takes "retro locomotive gene x modern electric drive technology" as the core concept, to create urban commuter and light cross-country dual scene of electric-assisted bicycle. The low-saturated matcha green car body is matched with caramel-colored leather cushion, presenting a gentle and retro texture. The details of inverted front fork, all-terrain fat tire and golden disc brake hide wildness, forming a contrast temperament of "healing on the outside and beasts on the core. The battery is integrated into the frame cover plate, and industrial visual symbols are constructed with black contour texture and bright yellow blocks. The hollow triangular structure of the rear frame reduces the visual weight, and the long double cushion is both practical and postures. The whole vehicle follows the color matching strategy of "one main, one auxiliary and two embellishments" to create a highly recognizable street trend travel symbol-gently stop at the street corner and rush into the wilderness at any time.