Yamaha XV 750E (1981-82) vs Yamaha DT 250 (1981) vs Yamaha WR 250Z (1997) vs Suzuki GSX-R 750 (2014) vs Yamaha TT 600R (1998-99) vs Ducati XDiavel Black Star (2021) vs Honda CBR 600F4i Sport (2002) vs Yamaha DT 125 (1977)

Comparison technical specifications

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Make:	Yamaha	Yamaha	Yamaha	Suzuki	Yamaha	Ducati	Honda	Yamaha
Model:	XV 750E	DT 250	WR 250Z	GSX-R 750	TT 600R	XDiavel Black Star	CBR 600F4i Sport	DT 125
Years:	1981-82	1981	1997	2014	1998-99	2021	2002	1977
Engine:	Four stroke, 75°-V-Twin cylinder, SOHC. 2 valve per cylinder.	Two stroke, single cylinder	Two stroke, single cylinder	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Four stroke, single cylinder, SOHC, 4 Valve	Four stroke, Testastretta DVT (Desmodromic Variable Timing), 90° L-Twin, 4 Desmodromically actuated valves per cylinder, dual spark	Four stroke, Transverse four cylinder, DOHC, 4 valve per cylinder.	Two stroke, single cylinder, reed-valve
Capacity:	748 cc / 45.6 cu-in	246 cc / 15.0 cu-in	249 cc / 15.2 cu-in	749 c / 45.7 cub. in.	595 cc / 36.5 cu-in	1262 cc / 77 cu in	599 cc / 36.5 cu-in	123 cc / 7.5 cu-in
Bore x Stroke:	83 x 69.2 mm	70 x 64 mm	68 x 68.8 mm	70 x 48.7 mm	95 x 84 mm	106 x 71.5 mm	67 x 42.5 mm	56 х 50 mm
Compression Ratio:	8.7:1	6.8:1	10.9:1	12.5:1	8.5 :1	13.0:1	12.0:1	7.2:1
Induction:	34mm Keihin carburetors	Single 28mm Mikuni VM28SS	Mikuni VM38SS carburetor	New 32 bit ECM features 1024 kilobytes of ROM for maximum engine performance working in conjunction with the new S-DMS engine management system	26mm Dual stage Teikei Y26PV carburetor26mm Dual stage Teikei Y26PV carburetor	Electronic fuel injection system, 56mm elliptical throttle bodies full with ride-by-wire system	Electronic fuel injection	Single 24 mm Mikuni carburettor
Ignition:	CDI	External-rotor magneto; CDI; six-volt battery	CDI	Digital DC-CDI	CDI	Electronic	Digital transistorized 3 dimensional mapping computer-controlled.	Magneto
Starting:	Electric	Kick	Kick	Electric	Kick	Electric	Electric	Kick
Front Suspension:	37mm Showa leading axle. adjustment for air pressure and rebound damping	Oil-damped, coil-spring fork with forward-mounted axle and	43mm inverted fork	Showa inverted 41 mm cartridge front forks fully adjustable for high and low speed compression, spring preload, and rebound damping	Telescopic forks	50mm USD adjustable forks with DLC treatment	43mm fully adjustable cartridge-type fork	Telescopic forks
Rear Suspension:	Monoshock single damper, adjustment for air pressure and rebound damping	DeCarbon-type, nitrogen-charged mono-shock producing	Monocross, swinging arm	Showa 41mm aluminum alloy rear shock with a 16mm rod diameter are fully adjustable for high and low speed compression, spring preload and rebound damping	Alloy swinging arm single shock with adjustable dampers	Single shock absorber, adjustable preload and rebound, remote reservoir, Single sided cast/trellis frame swingarm	Pro-Link featuring fully adjustable gas-charged remote reservoir damper	Monocross
Front Brakes:	2x 267mm disc 2 piston calipers	Conical hub with drum brake	Single 204mm disc	2 x 310 mm Discs, radial-mount opposed-four-piston Brembo 4 piston monoblock calipers	Single 267mm disc	2x 320 mm semifloating discs, radial Brembo monobloc 4-piston M50 callipers, PR16/19 radial master cylinder	2x 296mm discs 4 piston calipers	Drum
Rear Brakes:	Drum	Conical hub with rod-actuated drum brake	Single 189mm disc	Single 220 mm disc, Nissin single piston caliper	Single 220mm disc	Single 265 mm disc, Brembo 2-piston floating calliper	Single 220mm disc 1 piston caliper	Drum
Front Tyre:	3.50-19	3.00-21	80/100-21	120/70 ZR17	90/90-21	120/70 ZR17 Pirelli Diablo Rosso III	120/70 ZR17	2.75-21
Rear Tyre:	120/90-18	4.00-18	110/100-18	180/55 ZR17	130/90-18	240/45 ZR17 Pirelli Diablo Rosso III	180/55 ZR17	3.50-18
Fuel Capacity:	14.5 Litres / 3.8 US gal	8.5 Litres / 2.2 gal	13 Litres / 3.4 US gal	17 Litres / 4.5 US gal / 3.7 Imp gal	10 Litres / 2.6 US gal	18 L / 4.75 US gal	18 Liters / 4.2 gal	6.8 Litres / 1.8 gal