Norton Mercury 650 (1968-70) vs Honda CBR 400RR (1993) vs KTM 300 EXC Enduro (1997-98) vs Norton Commando 961 Café Racer MKII (2016-17) vs Norton Atlas Nomad (2019) vs Honda CBR 600RR (2012)

Comparison technical specifications

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Make:	Norton	Honda	KTM	Norton	Norton	Honda
Model:	Mercury 650	CBR 400RR	300 EXC Enduro	Commando 961 Café Racer MKII	Atlas Nomad	CBR 600RR
Years:	1968-70	1993	1997-98	2016-17	2019	2012
Engine:	Four stroke, parallel twin	Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder.	Two stroke, single cylinder	Four stroke, parallel twin with push-rod valve actuation, 3 bearing crank balancer shaft, 2 valves per cylinder	Four stroke, parallel twin. 270 degree firing order. Chain driven DOHC, with idler gear.	Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder.
Bore x Stroke:	68 x 89 mm	55 x 42 mm	72 x 73 mm	88 x 79 mm	82 x 61.5mm	67 x 42.5 mm
Cooling System:	Air cooled	Liquid cooled; radiator with cooling fan	Liquid cooled	Air cooled	Liquid cooled	Liquid cooled
Induction:	Single concentric carburetor, Amal	4x 26mm Flat-side CV	Keihin PWK38 D-slide carburetor	Fuel injected	Electronic fuel injection system. 4 fuel injectors. Full drive-by-wire system.	Dual Stage Fuel Injection (DSFI) with 40mm throttle bodies, Denso 12-hole injectors
Starting:	Kick	Electric	Kick	Electric	Electric	Electric
Transmission:	4-Speed	6 Speed	5 Speed	5 Speed, constant mesh		Close-ratio 6 Speed
Final Drive:	Chain	Chain	Chain, Regina O-ring	Chain, 525 "O" ring	Chain	#525 O-ring chain
Frame:	Single downtube, cradle	Twin-spar, box-section aluminum	Steel, CrMo	Tubular steel with integral oil tank	Twin tube seamless steel perimeter chassis with aluminium swingarm mount. Swingarm, Braced twin spar cast aluminium.	Aluminium, twin spar
Front Suspension:	Telescopic fork	41mm Showa damper-rod forks with adjustable pre-load	Marzocchi 45 upside down fork and shock	Ø43 mm Öhlins USD, adjustable preload, compression, and rebound damping.	50mm diameter Roadholder USD forks. Preload, compression and rebound adjustable	41mm inverted Big Piston Fork with spring preload, rebound and compression damping adjustability
Rear Suspension:	Swingarm, plungers	Showa gas/oil shock with adjustable preload and compression	Fully adjustable Ohlins 3A mono-shock	Öhlins reservoir-style twin shocks, adjustable ride height, preload, compression, and rebound damping.	Roadholder monoshock with rising rate linkage and piggyback reservoir. Adjustable preload.	Unit Pro-Link HMAS single shock with spring preload, rebound and compression damping adjustability;
Front Brakes:	Drum, twin leading shoe	2x 275mm discs 4 piston calipers	Single260 mm disc	Brembo 2 x Ø320 mm fully-floating high carbon stainless steel discs, 4 piston Brembo radially mounted calipers. Brembo front brake master cylinder with integral reservoir	2 x 320mm full floating Brembo discs. Radially mounted twin Brembo monoblock callipers with ABS. Brembo master cylinder.	2x 310mm discs 4 piston calipers
Rear Brakes:	Drum	Single 220mm disc 2 piston caliper	Single 220 mm disc	Brembo single Ø220 mm disc, 2 piston caliper. Brembo rear brake master cylinder	Single 245mm Brembo disc. Brembo twin piston rear calliper with ABS. Brembo master cylinder.	Single 220mm disc 1 piston caliper
Dry Weight:	185 kg / 408 lbs	163 kg / 359.4 lbs	112 kg / 247 lbs	188 kg / 415 lbs	178 kg / 392.4 lbs	156.5 kg / 345 lbs