I can understand the need for fully synthetic oil in a 600cc supersport that revs to 16.000rpms..
but for example, Kawasaki recommends MINERAL OIL for my bike, the 2007 ER6F, a 650cc twin
with 72hp with a 11000rpm red-line (!).. so.. that's exactly what I use, Motul 5100 15W50.