Steering wheel controls typically have geared encoder mechanisms which give them very high resolution. This is important for a steering wheel because of the large diameter. Without the high resolution encoder, the wheel would feel unresponsive or provide poor control by requiring higher sensitivity settings.
So while the wheels may fit onto standard 1/4" shafts, trying to use one on spinners with a lower resolution than the TT2 would probably just result in unsatisfactory game play.
RandyT