Yamaha FZR 1000 Geneses (1987) vs BMW R nineT Special Edition (2016) vs Yamaha XS 250 DOHC (1984-) vs MV Agusta F4 750 Brutale CRC (2003) vs Hyosung RX 125 (2000-) vs Aprilia RX50 (2014-15) vs Harley-Davidson Aermacchi / Harley Davidson SXT 250 (1975) vs Yamaha YS 250 Fazer BlueFlex (2013-)

Comparison technical specifications

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Make:	Yamaha	BMW	Yamaha	MV Agusta	Hyosung	Aprilia	Harley-Davidson	Yamaha
Model:	FZR 1000 Geneses	R nineT Special Edition	XS 250 DOHC	F4 750 Brutale CRC	RX 125	RX50	Aermacchi / Harley Davidson SXT 250	YS 250 Fazer BlueFlex
Years:	1987	2016	1984-	2003	2000-	2014-15	1975	2013-
Engine:	Four stroke, 35° forward inclined transverse four cylinder, DOHC, 5 valves per cylinder.	Four stroke, two cylinder horizontally opposed Boxer, two camshafts and four radially aligned valves per cylinder, central counterbalancer shaft.	Four stroke, 180° parallel twin, DOHC, 2 valves per cylinder	Four stroke, transverse four cylinder. DOHC, 4 valves per cylinder	Four stroke, single cylinder	Single cylinder, two stroke	Two stroke, single cylinder	Four stroke, single cylinder, SOHC, 2valve
Capacity:	989 cc / 60.9 cu-in	1170 cc / 71.4 cub in.	248 cc / 15.2 cu-in	749.4 cc / 45.7 cu-in	124 cc / 7.6 cu-in	49.9 cc / 3.04 cu in	242.6 cc / 14.8 cu-in	250 cc / 15.2 cu-in
Bore x Stroke:	75 x 56 mm	101 x 73 mm	56 х 50.6 mm	73.8 x 43.8 mm	57 x 48.8 mm	39.9 x 40 mm	72 x 59.6 mm	74 x 58 mm
Cooling System:	Liquid cooled	Air/Oil cooled	Air cooled	Liquid cooled	Air cooled	Liquid cooled	Air cooled	Air cooled
Compression Ratio:	11.2:1	12.0:1	10.1:1	12.0:1	9.8;1	11.5:1	10.3:1	9.8;1
Induction:	4x 37mm BDS Mikuni carburetors	Electronic intake pipe injection / digital engine management with overrun cutoff, twin-spark ignition	2x 32mm Mikuni carburetors	Fuel Injection, Multipoint electronic injection	Sung Lim PD	Dell'Orto PVHA 17.5 carburetor	1x 32mm Dell'Orto carburetor
Starting:	Electric	Electric	Kick	Electric	Electric & kick	Kick	kick	Electric
Final Drive:	Chain, 532 'O'-ring type	Shaft	Chain	Chain	Chain	Chain	Chain	Chain
Front Suspension:	41mm Telescopic infinite preload adjustable.	Upside-down telescopic forks, 46 mm fixed-fork-tube diameter	Telescopic forks	Upside-down telescopic hydraulic fork with rebound-compression damping and spring preload adjustment 49mm diameter	Upside down telescopic fork, 250mm wheel travel	Hydraulic fork, Ø 40 mm	Oil damper Ceriant telescopic fork	Telescopic forks
Rear Suspension:	Monoshock infinite preload adjust, 130mm wheel travel.	Cast aluminium single swinging arm with BMW Motorrad Paralever; central spring strut,spring preload fully adjustable by hook wrench, adjustable rebound-stage damping	Dual shocks, swing arm, 5-position preload adjustable	Progressive, with single sided swingarm, single shock absorber with rebound-compression damping and spring preload adjustment	Swingarm, 200mm wheel travel	High strength steel swingarm, hydraulic monoshock	Pivoted fork and Betor dampers 3-way adjustment	Monoshock
Front Brakes:	2x 317 mm discs 4 piston calipers	2 x 320 mm Foating brake discs, 4 piston radial calipers	Single 267mm disc	2x 310mm discs 6 piston calipers	Single 240mm disc	Single stainless steel disc, Ø 260 mm, floating caliper	Single disc	Single 282mm disc
Rear Brakes:	Single 264 mm disc 2 piston caliper	Single 265 mm disc, 2 piston floating caliper	178mm Drum	Single 210mm disc 4 piston caliper	130mm drum	Single disc, Ø 180 mm, floating caliper	Drum	130mm Drum
Front Tyre:	120/70 VR17	120/70 - ZR17	3.00-18	120/65 ZR17	90/90 -21	90/90-21	3.00 -21	100/80 17
Rear Tyre:	160/60 VR18	180/55 - ZR17	3.50-18	190/50 ZR17	4.10-18	110/80-18	4.00 -18	130/70 17