1460959635-25afb3f6-3e0c-42ba-862f-18258ac7eeb7

A mounting track for electrical components including a base that is designed to attach a track to a support surface. The multilayer has a first magnetic fixed layer whose magnetization is substantially fixed in a first direction substantially perpendicular to the surface. A control assembly includes a manually operable control member operatively connected to the driver assembly to accomplish substantially corresponding movement of the chair with that of the control member. This architecture avoids conflicts which might otherwise arise with the COPS protocol. For a heavier, military vehicle wheel system, a varied centering element is used in conjunction with segmented inner tire system.