Have this oil bought for my Suzuki Bandit GSF650 since I her because of the quite high speeds (throttled by most traveling between 7-12k RPM) did vouchsafe good oil. Comes in 4L containers.
The price here at Amazon is just over 8 / liter incredibly cheap, in retail and in other online shops it often costs twice as much! Compare prices and pays just with engine oil from pretty.