Abstract: A sports trailer system comprised of a first removable module, a second removable module, an integrally molded frame shaped and adapted for the nesting of the first removable module and the second removable module within the frame, and a substantially flat floor surface contiguous with the integrally molded frame. The frame contains at least 90 weight percent of nonmetallic material and is an integral, continuous structure comprised of at least three structural cross-member elements and at least two structural longitudinal structural elements.