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)

Comparison technical specifications

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Make:	KTM	Norton	KTM	KTM	KTM	Norton
Model:	990 Super Duke	Commando 961 Sport	690 LC4 Supermoto R	690 Enduro R	250 EXC-E	Commander Rotary
Years:	2010	2010	2008	2019	2008-10	1991
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
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
Cooling System:	Liquid cooling,	Air cooled	Liquid Cooled	Liquid cooled	Liquid cooled	Liquid cooled
Compression Ratio:	11.5:1	10.1:1	11.7:1	12.7:1	11.0:1	9.0:1
Induction:	Electronic fuel injection / electric	Fuel injected	Generation Keihin EMS with EPT (Electric Power Throttle)	Keihin EFI (throttle body 50 mm)	Keihin MX FCR 39 carburetor	2 x Ø38mm CV SUH14 carburetors
Starting:	Electric	Electric	Electric	Electric	Kick and electric	Electric
Transmission:	6 Speed	5 Speed, constant mesh	6 Speed	6-Speed	5 Speed	5 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
Front Suspension:	48mm WP Upside down adjustable	Ø43 mm Öhlins RSU, adjustable preload, compression, and rebound damping.	WP Upside-down forks	WP USD XPLOR 48 forks	WP Suspension – 4860 MXMA / MXMA + PA	Ø38 mm Telescopic forks
Rear Suspension:	WP shock, fully adjustable	Öhlins reservoir-style twin shocks, adjustable ride height, preload, compression, and rebound damping.	WP monoshock	WP shock absorber with Pro-Lever linkage	WP Suspension – 5018 PDS MCC / DCC, aluminium swing arm	Twin Koni with preload adjust
Front Brakes:	2x 320mm discs 4 piston calipers	Brembo 2 x Ø320 mm semi-floating carbon stainless steel discs, 4 piston "Gold Line" axial calipers	Single 320mm disc	Single 300 mm disc, Brembo 2 piston floating caliper	Single 260 mm disc, floating caliper	2 x Ø265 mm discs
Rear Brakes:	Single 240mm disc 1 piston caliper	Brembo single Ø220 mm disc, 2 piston "Gold Line"caliper	Single 240mm disc	Single 240 mm disc, Brembo single piston floating caliper	Single 220 mm disc, floating caliper	Single Ø265 mm disc
Front Tyre:	120/70 ZR17	120/70 -17	120/70 -17	90/90 -21	90/90 - 21	100/90 V18
Rear Tyre:	180/55 ZR17	180/55 -17	160/60 -17	140/80 -18	120/80 - 18	110/90 V18
Fuel Capacity:	18.5 Litres / 4.8 gal	17 Litres / 4.5 US gal	13.2 Litres / 3.4 US gal	13.5 Litres / 3.5 US gal	9.5 Litres / 2.5 US gal	23 L / 6.1 US gal