KTM 990 Super Duke, If all of life were like a KTM Super Duke it would be a short, barely glimpsed blur of action-packed vignettes. There is surely nothing more frenetic on two-wheels than the KTM 990 Super Duke short of sticking a nitrous kit, a jet turbine and a flame-thrower into the frame of a fold-up bicycle. Engine size 999 cc, Power 120 bhp, Top speed 151 mph, Insurance group 15 of 17, Â MCN ratings Owners' ratings, Overall rating is 5 rating is 5, Engine rating is 5 rating is 4.5, Ride & Handling rating is 5 rating is 4.5, Equipment rating is 5 rating is 4.5, Quality & Reliability rating is 4 rating is 4.5, Value rating is 5 rating is 4.5, Condition: