And note the position of the oil tank - almost lower than the motor. No more gavity-primed oil pump.
I have the book "Bimota: 25 years of excellence" [1] and in the photos it seems as if the oil tank surrounds the oil filter? (Between the exhaust headers and the crankcase). The HB-1 spares list in the book says: Item 4) Front oil tank. price: 490 000 Lire.
[1] search this book on amazon - it's almost pricier than the bike!
regards
Thomas
I didn't even notice the engine is a stressed member of the frame and boy does that top frame rail hug the valve cover (looks to be dented even to get closer)