I thought they were far closer than that, I thought the busa was at its base a GSXR1100 waterpumped motor, with what amounted to a 1270kit on top and better carb/injection, stupid gearing etc for flat out speed. Personally I adored the 1200bandit, the proper early ones before they gave it manners, without a lot of work those motors gave getting on for 150bhp. Rode like a LC with bigger everything.