Suzuki SP 125 (1987-88) vs Yamaha TRX 850 (1996-99) vs Suzuki TU 250X (1997-01) vs Indian Chief Classic (2009-10) vs BMW R 1150GS (2002) vs BMW R 1150RS (2002-03)

Comparison technical specifications

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Make:	Suzuki	Yamaha	Suzuki	Indian	BMW	BMW
Model:	SP 125	TRX 850	TU 250X	Chief Classic	R 1150GS	R 1150RS
Years:	1987-88	1996-99	1997-01	2009-10	2002	2002-03
Engine:	Four stroke, single cylinder, OHC, twin dome combustion chamber	Four stroke, parallel twin cylinder, DOHC, 5 valves per cylinder	Four stroke, single cylinder, SOHC, 4 valves	Four stroke, V-twin, 2 valve per cylinder.	Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder	Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder
Capacity:	124 cc / 7.6 cu in	849 cc / 51.8 cu-in	249 cc / 15.2 cu-in	1720 cc / 105 cu-in	1130 cc / 69 cu in	1130 cc / 69 cu in
Bore x Stroke:	57 x 48.8 mm	89.5 x 67.5 mm	72 x 61.2 mm	3.966 x 4.25 in.	101 x 70.5 mm	101 x 70.5 mm
Compression Ratio:	9.5:1	10.5:1	9.0:1	9.0:1	10.3:1	11.3:1
Cooling System:	Air cooled	Liquid cooled	Air/oil-cooled	Air cooled	Air/Oil cooled	Air/Oil cooled
Induction:	Mikuni VM26SS carburetor	2x Mikuni BDST38 carbs	EFI	Closed loop sequential port fuel injection	Bosch Motronic MA 2.4 Fuel injection	Bosch Motronic MA 2.4 Fuel injection
Ignition:	Suzuki PEI	TCI (Transistor Controlled Ignition)	Electronic ignition (fully transistorized)	Digital CDI	Electronic ignition MA 2.2 Bosch Motronic	Electronic ignition MA 2.2 Bosch Motronic
Starting:	Kick	Electric	Electric	-Electric	Electric	Electric
Transmission:	6 Speed	5 Speed	5 Speed	5 Speed	6 Speed	6 Speed
Final Drive:	Chain, #428	Chain	Chain	Belt	Shaft	Shaft
Front Suspension:	Telescopic forks, leading axle, oil damped	41mm Telescopic fork Coil spring. oil damper	Telescopic, hydraulic dampers, coil springs	41 mm diameter	Light. Telelever with central spring strut, progressive coil spring, twin-tube gas-filled shock,	Telelever with central suspension strut, continuously variable rebound stage.
Rear Suspension:	Box-type swingarm, monoshock, full floater, fully adjustable	Swingarm Coil spring. gas-oil damper	Swinging arm, hydraulic dampers, coil springs	Single shock	Patented BMW Paralever swing arm & shaft drive, single shock with variable rebound and damping adjustments	Central suspension strut with coil spring and single tube gas shock absorber, continuously variable rebound stage, hydraulically adjustable spring preload.
Front Brakes:	Single hydraulic disc	2x 298mm discs 4 piston calipers	Single disc	Single 292mm disc 2 piston calipers	2 x 304mm discs, 4 piston calipers	2 x 305 mm Discs, 4 piston calipers
Rear Brakes:	Drum	Single 248mm disc	Drum	Single 292mm disc 1 piston calipers	Single 276mm disc, 2 piston caliper	Single 285 mm disc, 2 piston caliper
Front Tyre:	80/80-21 45P, semi knobbly	120/60 ZR17	90/90-18	130/90-16	110/80 R19	120/70 ZR17
Rear Tyre:	100/80-18 53P, semi-knobbly	160/60 ZR17	110/90-18	150/90-16	150/70 R17	170/60 ZR17
Dimensions:	Length: 2170 mm / 85.4 in Width: 845 mm / 33.3 in Height: 1190 mm / 46.9 in	Length 2070 mm / 81.4 in Width 700 mm / 27.5 in	Length 2070 mm / 81.5 in Width 750 mm / 29.5 in Height: 1075 mm / 42.3 in	Length 2552 mm / 100.5 in Width 1028 mm / 40.5 in Height 1282 mm / 50.5 in	Length 2,180 mm / 85.8 in Width 980 mm / 38.6 in Height 1,435 mm / 56.5 in	Length 2170 mm / 85.4 in Width 920 mm / 28.3 in Height 1286 mm / 50.6 in
Wheelbase:	1390 mm / 54.8 in	1435 mm / 56.4 in	1375 mm / 54.1 in	1737 mm / 68.3 in	1,501 mm / 59.1 in	1473 mm / 58.0 in
Seat Height:	820 mm / 32.3 in	798 mm / 31.8 in	770 mm / 30.3 in	680.8 mm / 27.2 in	850 mm / 33.5 in	790 mm / 31.1 in 830 mm / 32.7 in
Fuel Capacity:	13 Litres / 3.4 US gal / 2.9 Imp gal	18 Litres / 4.7 US gal	12 Litres / 3.2 US gal / 2.6 Imp gal	20.8 Litres / 5.5 Gal	22 Litres / 5.8 US gal	23 Litres / 6.1 US gal