Yamaha FZR 250R (1990-92) vs Yamaha SR 400 (1993-97) vs Hyosung GT 250R (2012) vs Ducati 125 TV Testone (1962-68) vs Gilera RC 600 Enduro (1989-91) vs Harley-Davidson Harley Davidson Softail Street Bob (2020)

Comparison technical specifications

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Make:	Yamaha	Yamaha	Hyosung	Ducati	Gilera	Harley-Davidson
Model:	FZR 250R	SR 400	GT 250R	125 TV Testone	RC 600 Enduro	Harley Davidson Softail Street Bob
Years:	1990-92	1993-97	2012	1962-68	1989-91	2020
Engine:	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Four stroke, single cylinder, SOHC, 2 valves per cylinder.	Four stroke, 75° V twin, DOHC, 4 per valve cylinder.	Four stroke, single-cylinder, OHC, bevel gear driven	Four stroke, single cylinder, DOHC, 4 valves	Four stroke, V-Twin, Milwaukee-Eight 107, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder
Capacity:	249 cc / 15.2 cu-in	399 cc / 24.3 cu-in	248 cc / 15.2 cu-in	124.4 cc / 7.6 cu in	558 cc / 34.0 cu-in	1746 cc / 107 cub in
Bore x Stroke:	48 х 34.5 mm	87 х 67.2 mm	57 x 48.8 mm	55.2 x 52 mm	98 x 74 mm	100 x 111 mm
Cooling System:	Liquid cooled	Air cooled	Oil / Air	Air cooled	Liquid cooled	Air cooled
Compression Ratio:	12.0:1	8.5:1	11.0:1	7.0:1	9.5:1	10.0:1
Induction:	MIKUNI BDS2600 carburetor	BSR33 carburetor	2x 26mm Mikuni carburetors	Dell'Orto UB18BS or ME18BS carburetor	2x Teikei E27PV2A carburetor	Electronic Sequential Port Fuel Injection (ESPFI)
Ignition:	CDI	CDI	Digital CDI	Battery and coil, 6V 40W generator	Electronic	Single-fire, non-wasted, map-controlled spark ignition
Starting:	Electric	Kick	Electric	Kick	Kick	Electric
Final Drive:	Chain	Chain	Chain	Chain	Chain	Belt
Front Suspension:	38mm Telescopic forks	Telescopic fork	41mm Oil upside down forks	Hydraulically damped telescopic forks, Marzocci	41mm Morzocchi forks	Showa Inverted forks
Rear Suspension:	Monoshock preload adjustable.	Dual shocks	Swinging arm	Swingarm, dual shocks, 3-way adjustable	Boge shocks variable preload	Mono Shock
Front Brakes:	2x 285mm discs 4 piston calipers	Single disc	Single 300mm disc	Drum, 123 mm	Single 260mm disc	Single disc, 4 piston caliper, fixed
Rear Brakes:	Single 210mm disc 2 piston caliper	Drum	Single 230mm disc	Drum, 123 mm	Single 220mm disc	Single disc, 2 piston caliper, floating
Front Tyre:	100/80--17	3.50-19	110/70 -17	2.75 - 16	90/90 -21	100/90B19,57H,BW
Rear Tyre:	130/70-17	4.00-16	150/70 -17	2.75 - 16	140/80 -17	150/80B16,77H,BW