We reprot on our analysis of deep X‐ray observations of Abell 665 and CL0016+16 obtained by the ROSAT position sensitive proportional counter (PSPC) as part of a project to characterize the density and temperature structure of clusters with well‐measured Sunyaev‐Zel’dovich decrements. The X‐ray images of both clusters show dramatic departures from the standard single‐component hydrostatic isothermal‐&bgr; model. ©1994 American Institute of Physics