Honda CBR 400RR (1988) vs Suzuki Boulevard S40 (2015-16) vs Yamaha XT 600E (1997-98) vs BMW R 51 (1938-40) vs KTM 450 Rally (2012) vs Indian Chief De Lux (2009-10)

Comparison technical specifications

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Make:	Honda	Suzuki	Yamaha	BMW	KTM	Indian
Model:	CBR 400RR	Boulevard S40	XT 600E	R 51	450 Rally	Chief De Lux
Years:	1988	2015-16	1997-98	1938-40	2012	2009-10
Engine:	Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder.	Four stroke, single cylinder, SOHC	Four stroke, single cylinder, SOHC, 4 valve	Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder.	Four stroke, single cylinder, SOHC, 4 valves per cylinder	Four stroke, V-twin, 2 valve per cylinder.
Capacity:	399 cc / 24.3 cu-in	652 cc / 39.8 cu-in	595 cc / 36.3 cu-in	494 cc / 30.1 cu in.	449.3 cc / 27.4 in	1720 cc / 105 cu-in
Bore x Stroke:	55 x 42 mm	94 x 94.0 mm	95 x 84 mm	68 x 68 mm	97 x 60.9 mm	3.966 x 4.25 in.
Cooling System:	Liquid cooled; radiator with cooling fan	Air cooled	Air/oil cooled	Air cooled	Liquid Cooled	Air cooled
Compression Ratio:	11.3:1	8.5:1	8.5:1	6.7:1	12.5:!	9.0:1
Induction:	4x 26mm Flat-side CV	Mikuni BS40	Single 28mm Y26PV carburetor	2 x Amal 5/423 carburetors	Keihin FCR-MX 41	Closed loop sequential port fuel injection
Ignition:	Digitalized full transistor ignition	Transistorized	T.C.I.	Battery ignition	Ignition Keihin DC ECUl	Digital CDI
Starting:	Electric	Electric	Electric	Kick	Electric	-Electric
Transmission:	6 Speed	5 Speed	5 Speed	4 Speed	5 Speed	5 Speed
Final Drive:	Chain	Belt	Chain	Shaft	Chain, 5/8 x 1/4"	Belt
Front Suspension:	41mm Showa damper-rod forks with adjustable pre-load	Telescopic 38 mm stanchions, coil spring, oil damped	41mm Telescopic forks, oil damped	Telescopic fork	WP-USD Ø 48 mm	41 mm diameter
Rear Suspension:	Showa gas/oil shock with adjustable preload and compression	Twin shock, 5-way adjustable spring preload	Monocross with preload adjustment,	Long swing arm with suspension units and oil pressure shock absorbers	WP-Monoshock with Pro-Lever linkage	Single shock
Front Brakes:	2x 275mm discs 4 piston calipers	265 mm Single disc	Single 267mm discs 2 piston caliper	∅200mm Drum, duplex full hub	Single 300 mm disc, Brembo two-piston, floating caliper	Single 292mm disc 2 piston calipers
Rear Brakes:	Single 220mm disc 2 piston caliper	Drum, rod operated	Single 220mm disc single piston caliper	∅200mm Drum, simplex full hub	Single 240 mm disc, 1 piston, floating caliper	Single 292mm disc 1 piston calipers
Front Tyre:	120/60-17	100/90-19 57H, tube type	90/90-21	3.50 -19"	90/90 - 2154S TT, Michelin T63	130/90-16
Rear Tyre:	150/60-18	140/80-15 67H, tube type	120/90-17	3.50 -19"	130/80 - 18 66S TT, Michelin T63	150/90-16
Fuel Capacity:	15 Litres / 4.0 gal	10.5 Litres / 2.6 US gal	15 Litres / 4.0 US gal	14 liters / 3.60 US gal	35 L / 9.2 US gal / 7.7 Imp gal	20.8 Litres / 5.5 US gal