Modular bag for bicycles and the like

A bag for a bicycle removably constrained to a rear rack of the bicycle, wherein said bag comprises a first component, wherein said first component comprises a support container provided with an internal space and an opening, wherein said internal space is accessed by said opening, wherein said first component has at least one removable connection means comprising at least one band provided with at least one strap or hook and loop closure element, for removably constraining during use said first component to the rear rack, wherein said bag comprises a second component at least partially housed, in a removable manner, in said first component through said opening, wherein said first component comprises at least one first portion formed by front, rear and lateral surfaces, each of said front, rear and lateral surfaces having respective heights, and a second portion comprised of front, rear and lateral walls, each of said front, rear and lateral walls having respective heights, said second portion being placed above said first portion, wherein said opening delimits an upper perimeter of said second portion, and wherein said at least one first portion and said second portion are comprised of a rigid material which maintains its structure and maintains the respective heights of said at least one first portion and said second portion,

• wherein said front surface of said first component is composed of a frontal surface adapted during use to be directed towards the exterior with respect to the frame of the bicycle, wherein said frontal surface is parallel to a greater extension of a front or rear wheel of the bicycle,
• wherein said first component further comprises a rear surface, adapted during use to come into contact with or to be constrained with the frame of the bicycle and parallel to said frontal surface,
• and wherein said first component further comprises at least one lateral surface and a lower base, wherein said lower base is opposite said opening,
• wherein said frontal and rear surfaces and said lateral surfaces have a same height (H), or wherein said front surface, said rear surface and said lateral surface respectively, each have an end edge which forms a single or upper perimeter, such perimeter lying on a plane parallel to the ground,
• wherein said front wall of said second portion comprises a frontal wall provided with a lower end edge, and wherein the rear wall comprises a lower end edge and said lateral walls comprise a lower end edge, wherein said second portion further comprises a lower opening delimited by a lower peripheral edge formed by said lower end edges, wherein said lower peripheral edge is adapted to come into contact with said perimeter of said first portion of the first component, wherein said second portion is constrained, in a removable manner, to said first portion by means of coupling means, comprising at least one of elastic bands, clips, hooks by pressure, or by fitting or by interference, and wherein said frontal wall of said second portion has a first height (HI), and said rear wall of said second portion has a second height (H2) with respect to said lower peripheral edge, wherein (H2) is greater than (HI), and said lateral walls of said second portion have a height (h) progressing from (HI) to (H2), and act as a connection between frontal wall and rear wall, and further comprising a handle at an upper zone of said rear wall, said handle for being gripped by a user to position or remove said first component or support container.