The present invention regards a device for assembling and/or disassembling a support ring (SR) within or from a tyre (T), such device including a base, a column or pillar rising from said base and a grip and release group and/or an extraction group.

A weight apply system capable of changing tooling to apply weights to an assembly to correct unbalance. It may include a selectively movable arm, at least one weight apply tool, the ability to change the tooling based on assembly type, and a controller configured to manage the selection of the tool, loading the weight, and application of the weight to the assembly in station.