Brilliant Milton! Now can this be translated to FSDS?
Directly. There's no "hocus pocus" involved.... just two additional "x_gear_is" and "x_gear_is" parts, linked to the x_gear_nnn compression part.
The two _is and _os parts simply "hide" inside the tire part until about frame 120 and then they are keyframed to maximum lateral expansion at about 180, with "static" bulging at frame 150.
The beauty and brilliance of it is that if you look at it in the modelling program, it looks like a pasted on "sabrina" .... but in FS it looks natural.!!