With a bike stretching the wheelbase at the swingarm, the near 50/50 weight distribution from the stock bike effectively shifts fwd pretty hard. To get back to near 50/50, adding weight near the rear tire and down low appear sensible. The Guzzi below is (or was) of a pushrod record holder in Open and MPS with a Charlie Toy full fairing.
He installed what looks like a heavy oversized gel cell battery mounted to the frame, not the swingarm I believe. This seems to be a good way to go in his case.
George
