  We discuss a framework for communicating supersymmetry breaking to the
visible sector where the radius modulus, which determines the size of extra
dimensions, has an auxiliary vacuum expectation value. The modulus couplings
generate mass splitting in Kaluza-Klein supermultiplets and they act as
messengers of supersymmetry breaking. The soft masses are expressed in terms of
renormalization-group functions and the sparticle spectrum is determined by
what kind of field propagates in the bulk. This framework also provides new
possibilities for solving the supersymmetric flavor problem.
