I ride an 04 r1150 rockster, and was wondering if there are any durability issues to worry about with my splines or gearbox. I was under the impression that the rocksters came with the short ratio gearbox from the GSA's....does this make it more solid? I'm at 35k and I commute daily . I've changed the rear diff and gearbox oil, and don't feel anything out of the ordinary, I'm just curious.