I hope someone will have an answer to the following. I currently have a 2003 Hayabusa with RDS Neptune sidecar but am considering purchasing a very low mile 2011 Busa and transferring the sidecar to the new bike. My question is what are the differences in the frames, front forks, etc. between the first generation and second generation bike. The frame of the RDS sidecar is not your typical universal bolt to any bike sidecar. It has a sub-frame that was designed to attach to specific points on the Hayabusa frame (hopefully you can see this from the attached pictures). Just looking at the bike on the showroom floor the frame seems to be identical but even a small difference would make the transfer not possible. Also, I would need to install the removed front end, and rear wheel from the new bike onto my 2003 so my current bike could be sold. Are the fork tubes the same diameter so they would fit in my triple clamps and would the rear wheel be a direct fit? Thanks in advance for any knowledge you could provide.