Parallel twin bike engine
Bore 4,5 inch and 3,23 inch stroke gives a capacity of 1685 cc.
DOHC and big and divided exhaust ports makes it revving up to 9000 rpm.
The engine features two crankshafts connected with a splines bushing and 4 main bearings.
Billet horizontal split crankcase and billet barrels and billet 4 valve heads.
Separate drive shaft to the main and ancillary drive side.
All unique details to make more power, in combination with reliability, possible.