There is a local guy (to me) with a Thruxton and a attached sidecar. He reduced the fork rake a degree and a half (his words) to make the bike and car conform and he says that stopping is better and steering a tad better on the corners, but his forks keep losing seals. I think that's because forks need to collapse to function and side thrust was not engineered into the design. I would never have changed the frame when modifying the trees would accomplish the same thing, just me.
