I could have sworn there was already a thread for s/n.
My name is Arnold and in the sportbike world, the words "race replica" is used alot. Data from the track then trickles down to the production units. I've had the s/n since I got my 05 Kawasaki ZX-6RR and kept it every since. Same with my old Alpinestars suit, it was literally called Alpinestars Race-Replica.