BMW K 75 (1985-86) vs Yamaha SRX 600 (1989-97) vs Yamaha XT 250 (2016-17) vs Yamaha YZF 600 R6 (2007) vs Suzuki TL1000S (2001-02) vs Yamaha RD 125 (1979-80) vs Yamaha YZF 1000 R1M (2017)

Comparison technical specifications

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Make:	BMW	Yamaha	Yamaha	Yamaha	Suzuki	Yamaha	Yamaha
Model:	K 75	SRX 600	XT 250	YZF 600 R6	TL1000S	RD 125	YZF 1000 R1M
Years:	1985-86	1989-97	2016-17	2007	2001-02	1979-80	2017
Engine:	Four-stroke, horizontal three cylinder in-line, DOHC, 2 valves per cylinder	Four stroke, single cylinder, SOHC, 4 valve	Four stroke, single cylinder. SOHC, 2 valve	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Four stroke, 90°-V-twin, DOHC, 4 valves per cylinder	Two stroke, parallel twin	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.
Capacity:	740 cc / 45 cub. in.	608 cc / 37.1 cu-in	249 cc / 15.2 cu-in	599 cc / 36.5 cu-in	996 cc / 60.8 cu-in	124 cc / 7.6 cu-in	998 cc / 60.9 cu-in
Bore x Stroke:	67 x 70 mm	96 х 84 mm	74.0 x 58.0mm	67 x 42.5 mm	98 x 66 mm	43 х 43 mm	79.0 x 50.9 mm
Compression Ratio:	11.0:1	8.5:1	9.5;1	12.4;1	11.3:1	6.8:1	13.0:1
Cooling System:	Liquid cooled	Air cooled	Air cooled	Liquid cooled	Liquid cooled	Air cooled	Liquid cooled
Induction:	Electronic injection, Bosch LE-Jetronic	27mm Teikei 2KY27PV carburetor	Mikuni 33mm throttle body fuel injection	Fuel Injection 38mm throttle bodies	2 x 52 mm Mikuni Denso EFI	2x 18mm Teikei carburetors	Fuel Injection with YCC-T and YCC-I
Starting:	Electric	Kick	Electric	Electric	Electric	Kick	Electric
Max Power:	55 kW / 75 hp @ 8500 rpm	45 hp / 34 kW @ 6500 rpm	18 hp / 13.1 kW @ 7500 rpm	124.6 hp / 91.7 kW @14500 rpm	91.1 kW / 125 hp @ 8500 rpm	17 hp / 12.4 kW @ 8500 rpm	147.1 kW / 200.0 hp @ 13500 rpm
Max Torque:	68 Nm / 6.9 kgf-m / 50 ft lb @ 6750 rpm	4.9 kgf-m / 34 lb-ft / 46 Nm @ 5500 rpm	19 Nm / 14.5 lb-fts @ 6500 rpm	69.1 Nm / 7.05 kg-m @ 11000 rp @ 1100 rpm	103 Nm / 10.5 kgf-m / 75.9 lb-ft @ 8000 rpm	1.3 kgf-m @ 8000 rpm	112.4 Nm / 11.5 kg-m @ 11500 rpm
Transmission:	5 Speed	5 Speed	5 Speed	6 Speed	6 Speed	5 Speed	6-speed w/multiplate slipper clutch
Front Suspension:	Telescopic fork with hydraulic shock absorber.	36mm Telescopic forks	35mm Telescopic forks	41mm upside down forks with 2-way compression damping adjustable	43 mm Inverted telescopic fork, coil spring, fully adjustable spring preload, rebound and compression damping	28 mm telescopic forks	43mm KYB® inverted fork; fully adjustable
Rear Suspension:	Monolever swinging arm.	Dual Kayaba shocks 5-way adjustable for preload	Monocross, Swingarm rebound-adjustable single shock	Fully adjustable rear shock absorber with 2-way compression damping	Rotary damping system, fully adjustable spring preload, compression and rebound damping	Dual rear shock pre-load adjustable	KYB® Single shock w/piggyback reservoir, 4-way adjustable
Front Brakes:	2 x ∅285mm discs, 2 piston calipers	2x 267mm disc	Single 245mm disc	2x 320mm discs	2 x 320mm Discs, 4 piston calipers	Single240mm disc	2x 320mm discs 4 piston calipers, UBS ABS
Rear Brakes:	Single ∅285mm disc	Single 240mm disc	Single 203mm disc	Single 220mm disc	Single 220 mm disc, 2 piston caliper	130 mm Drum	Single 220mm disc 1 piston caliper, UBS ABS
Front Tyre:	100/90-18 56H	110/70-17	80/70-21	120/70 ZR17	120/70-17	2.75-18	120/70 ZR17
Rear Tyre:	120/90-18 56H	150/60-17	120/80-18	180/55 ZR17	180/60-17	3.00-18	190/55 ZR17
Seat Height:	810 mm /31.9 in. or 760 mm / 29.9 in. for low seat model	770 mm / 20.3 in	830 mm / 32.7 in	850 mm / 33.5 in	835 mm / 32.9 in	749 mm / 29.5 in	830 mm / 32.7 in
Fuel Capacity:	21 liters / 5.54 US gal	15 Litres / 3.9 gal	9.6 Litres / 2.5 US gal	17.5 Litres / 4.6 gal	17 Litres / 4.4 US gal / 3.7 Imp gal	11.5 Litres / 3.04 US gal	17 Liters / 4.5 US gal