BMW R 1250RS (2022) vs Yamaha YZF 1000 R1M (2018) vs Yamaha NMAX 125 (2018) vs Matchless Silver Hawk (1931-35) vs Yamaha SRX 600 (1987-88) vs Yamaha SDR 200 (1990-92)

Comparison technical specifications

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Make:	BMW	Yamaha	Yamaha	Matchless	Yamaha	Yamaha
Model:	R 1250RS	YZF 1000 R1M	NMAX 125	Silver Hawk	SRX 600	SDR 200
Years:	2022	2018	2018	1931-35	1987-88	1990-92
Engine:	Four stroke, two cylinder horizontally opposed Boxer, with two overhead, spur gear driven camshafts , a counterbalance shaft and variable intake camshaft control system BMW ShiftCam, 4 valves per cylinder, Intake 40mm, outlet 34 mm	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Four stroke, single cylinder	V-four cylinder, OHC	Four stroke, single cylinder, SOHC, 4 valve	Two stroke, single cylinder, YPVS
Capacity:	1254 cc / 76.5 cu-in	998 cc / 60.9 cu-in	124 cc / 7.6 cu-in	592 cc / 38.1 cub in.	608 cc / 37.1 cu-in	195 cc / 11.8 cu-in
Bore x Stroke:	102.5 x 76 mm	79.0 x 50.9 mm	52 x 58.6 mm	50.8 x 73 mm	96 х 84 mm	66 х 57 mm
Compression Ratio:	12.5:1	13.0:1	11.2:1	6.1:1	8.5:1	5.9:1
Cooling System:	Liquid / Air cooled	Liquid cooled	Liquid cooled	Air cooled	Air cooled	Liquid cooled
Starting:	Electric	Electric	Electric	Kick	Kick	Electric
Transmission:	Constant mesh 6-speed gearbox with helical gearing system	6-speed w/multiplate slipper clutch	Automatic	4-Speed, Sturmey Archer gearbox	5 Speed	6 Speed
Final Drive:	Shaft	"O" ring chain	Belt	Chain	Chain	Chain
Front Suspension:	Telescopic Upside-Down fork; stanchion diameter 45 mm	43mm KYB® inverted fork; fully adjustable	Hydraulic telescopic fork	Matchless centre spring girders, finger adjustment	36mm Telescopic forks	33mm Telescopic forks
Rear Suspension:	Cast aluminium single-sided swing arm with BMW Motorrad Paralever; WAD strut (travel- related damping), spring pre-load hydraulically adjustable (continuously variable) at handwheel, rebound damping adjustable at handwheel	KYB® Single shock w/piggyback reservoir, 4-way adjustable	Unit Swing	Cantilever	Dual Kayaba shocks 5-way adjustable for preload	Monocross 9-way preload
Front Brakes:	2x 320mm floating discs, 4-piston radial brake calipers	2x 320mm discs 4 piston calipers, UBS ABS	Single 230mm disc	203 mm / 8 in. drum, interconnected	2x 267mm disc	Single disc 2 piston caliper
Rear Brakes:	Single 276mm disc, 2-piston floating caliper	Single 220mm disc 1 piston caliper, UBS ABS	Single 230mm disc	203 mm / 8 in. drum, interconnected	Single 240mm disc	Single disc 2 piston caliper
Front Tyre:	120/70 ZR17	120/70 ZR17	110/70-13	3.25 x 19 in.	110/70-17	90/80-17
Rear Tyre:	180/55 ZR17	190/55 ZR17	130/70-13	1958: 3.25 x 19 in. (4.00 x 19 available as an option)	150/60-17	110/80-17
Wheelbase:	1530 mm / 60.2 in	1419 mm / 55.9 in	1350 mm / 53.1 in	1422 mm / 56 in.	1380 mm / 54.3 in	1335 mm / 52.6 in
Wet Weight:	243 kg / 535.7 lbs	199 kg / 439 lbs	127 kg / 280 lbs	172 kg / 380 lbs	172 kg / 379.2 lbs	115 kg / 254 lbs
Fuel Capacity:	18 Litres / 4.7 US gal	17 Liters / 4.5 US gal	6 Litres / 1.58 US gal	11.4 L / 3.0 US gal	15 Litres / 3.9 gal	9.5 Litres / 3.0 US gal