KTM 450 EXC-F (2019-20) vs KTM 990 Supermoto T Limited Edition (2010) vs Norton Commando 850 Roadster MKII (1975) vs Norton V4 RR & SS (2017) vs Norton Commando 961 Café Racer MIII "Mick Grant Special" Limited Edition (2016)

Comparison technical specifications

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Make:	KTM	KTM	Norton	Norton	Norton
Model:	450 EXC-F	990 Supermoto T Limited Edition	Commando 850 Roadster MKII	V4 RR & SS	Commando 961 Café Racer MIII "Mick Grant Special" Limited Edition
Years:	2019-20	2010	1975	2017	2016
Engine:	Four stroke, single cylinder, SOHC, 4 valves per cylinder	Four stroke, 75°V-twin cylinder, DOHC, 4 valves per cylinder	Four stroke, parallel twin cylinder, push rod 2 valves per cylinder.	Four stroke, 72 ° V-four cylinder, Chain-driven cams with idler gear for reduced engine height. Titanium inlet valves. Slipper clutch	Four stroke, parallel twin with push-rod valve actuation, 3 bearing crank balancer shaft, 2 valves per cylinder
Capacity:	449.3 cc / cu-in	999.8 cc / 60.9 cu-in	829 cc / 50.6 cu in	1200 cc / 73.2 cu in	961 cc / 58.6 cu in
Bore x Stroke:	95 x 63.4 mm	101 x 62.4mm	77 x 89 mm	82mm x 56.8mm	88 x 79 mm
Cooling System:	Liquid cooled	Liquid cooling,	Air cooled	Liquid-cooled	Air cooled
Compression Ratio:	11.9:1	11.5:1	8.5:1	13.6:1	10.1:1
Induction:	Keihin MX FCR 39 carburetor	Keihin EMS With FPT fuel injection	2 x Ø32 mm Amal concentric carburetors	Electronic fuel-injection system. Constantly variable inlet tracts. 8-fuel injectors. Full drive-by-wire system independent of front and rear banks of cylinders for ultimate control and feel	Fuel injected
Ignition:	Keihin EMS	Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment	120W Lucas alternator	Keyless ignition system	Crank fired electronic
Starting:	Electric	Electric	Electric and kick	Electric	Electric
Transmission:	6 Speed	6 Speed	4 Speed	Full quickshift system and auto down blipper	5 Speed, constant mesh
Final Drive:	Chain X-Ring 5/8 x 1/4″	Chain 5/8 x 5/16" X Ring	Chain	Chain	Chain, 525 "O" ring
Front Suspension:	WP XACT USD fork, Ø 48 mm	48mm WP USD adjustable	Telescopic forks	Ohlins NIX30 system front fork. Fully-adjustable. Fork yokes - Cast top and bottom	Ø43 mm Öhlins RSU, adjustable preload, compression, and rebound damping.
Rear Suspension:	WP XACT Monoshock with Linkage	WP shock, fully adjustable	Swing arm with Girling coil springs	Ohlins TTXGP Norton bespoke fully-adjustable rear shock. Fork yokes - Billet machined	Öhlins reservoir-style twin shocks, adjustable ride height, preload, compression, and rebound damping.
Front Brakes:	Single 260 mm disc, floating caliper	2x 305mm discs 4 piston calipers	Single disc	2 x 330mm full-floating discs. Radially-mounted Brembo monobloc calipers. Brembo discs and Brembo master cylinder	Brembo 2 x Ø320 mm semi-floating carbon stainless steel discs, 4 piston "Gold Line" axial calipers
Rear Brakes:	Single 220mm disc, floating caliper	Single 240mm disc 2 piston caliper	Single disc	Single 330mm disc. Brembo caliper and master cylinder	Brembo single Ø220 mm disc, 2 piston "Gold Line"caliper
Fuel Capacity:	8.5 Litres / 2.2 US gal	19 Litres / 5.0 gal	19 Litres / 5.0 US gal	18 litres / 4.7 US gal	17 Litres / 4.5 US gal