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This look at the disassembled Dyad details its hub-and-pin drive setup, which links the two disc plates. This innovative design eliminates the need to add springs on disc #2 (on the left in this photo), which keeps the unit fairly lightweight, as well as noise/chatter free. Drilled holes around the perimeter of the steel flywheel is another cool feature of this system. Lightening the outer region of the flywheel helps improve acceleration, which will be a big benefit to our heavy 'Stang.