Yep hub and spline count is the same on all of the MGs and Triumph of the 60s/70s/80s, only when you get to the Jjags, does the spline size change. We had guys put the splined alloy 14" wheels on Midgets, so I'm guessing you could put a MGB wire wheel on a Midget. Everything to do with a spline drive wheel set up is heavy, lightweight and spline drive don't go together.