KTM 990 Super Duke (2010) vs Norton Commando 961 Sport (2010) vs KTM 690 LC4 Supermoto R (2008) vs KTM 690 Enduro R (2019) vs KTM 250 EXC-E (2008-10) vs Norton Commander Rotary (1991) vs Norton Dunstall (1966-75)

Comparison technical specifications

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Make:	KTM	Norton	KTM	KTM	KTM	Norton	Norton
Model:	990 Super Duke	Commando 961 Sport	690 LC4 Supermoto R	690 Enduro R	250 EXC-E	Commander Rotary	Dunstall
Years:	2010	2010	2008	2019	2008-10	1991	1966-75
Engine:	Four stroke, 75°V-twin cylinder, DOHC, 4 valves per cylinder	Parallel twin with push-rod valve actuation, 3 bearing crank balancer shaft, 2 valves per cylinder	Four stroke, single Cylinder. SOHC, 4 Valve	Single cylinder, 4-stroke, SOHC, 4-valve	Two stroke, single cylinder	Twin chamber rotary	Parallel twin, OHV
Capacity:	999.8 cc / 60.9 cu-in	961 cc / 58.6 cu in	653.7	690 cc / 42.1 cu in	249 cc / 15.2 cu in	588 cc / 35.9 cu in	745 cc / 45.5 cu in
Cooling System:	Liquid cooling,	Air cooled	Liquid Cooled	Liquid cooled	Liquid cooled	Liquid cooled	Ari cooled
Starting:	Electric	Electric	Electric	Electric	Kick and electric	Electric	Kick
Transmission:	6 Speed	5 Speed, constant mesh	6 Speed	6-Speed	5 Speed	5 Speed	4-Speed
Final Drive:	Chain, X-Ring 5/8 x 5/16"	Chain, 525 "O" ring	Chain: X-ring 5/8 x 1/4"	Chain, 16:40	Chain, 5/8 x 1/4 in	Chain	Chain