The present disclosure relates to a main frame (700) for an agricultural implement, the main frame (700) being able to support a plurality of ground engaging tools and extending between a first end (702) that is connectable to an agricultural work vehicle and an opposite, second end (704), wherein the main frame (700) defines at least one cavity (701) extending at least partly between the first and second end of the main frame (700) for accommodating hydraulic and/or electric lines, and wherein the main frame (700) comprises at least one aperture providing access to the cavity from outside of the main frame (700).