Kawasaki Zephyr 400 X (2001-03) vs Triumph Speed Triple T509 (1998) vs Ducati GT 1000 Classic (2007) vs Triumph Street Triple R (2014) vs SYM MaxSym 400i (2014) vs Aprilia RSV-4 RF (2015)

Comparison technical specifications

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Make:	Kawasaki	Triumph	Ducati	Triumph	SYM	Aprilia
Model:	Zephyr 400 X	Speed Triple T509	GT 1000 Classic	Street Triple R	MaxSym 400i	RSV-4 RF
Years:	2001-03	1998	2007	2014	2014	2015
Engine:	Four stroke parallel twin cylinder. DOHC, 4 valves per cylinder	Four stroke, transverse three cylinder, DOHC, 4 valve per cylinder.	Four stroke, 90° “L” twin cylinder, desmodromic 2 valves per cylinder, operated by four rocker arms (two opening rockers and 2 closing rockers) SOHC. Driven by the crankshaft through spur gears, timing belt pulleys and toothed timing belts	Four stroke, in-line 3-cylinder, DOHC, 12 valves	Single cylinder, 4-stroke, 4V, SOHC	Four stroke, longitudinal 65° V four , DOHC, 4 valves per cylinder
Capacity:	399 cc / 24.4 cu-in	885 cc / 54.0 cu-in	992 cc / 60.5 cu in	675 cc / 41.19 cu-in	399 cc / 24.3 cub in.	999.6 cc / 61.0 cu-in
Cooling System:	Air cooled	Liquid cooled	Air cooled	Liquid-cooled	Liquid cooled	Liquid cooled
Compression Ratio:	10.3:1	10.0:1	10.0:1	12.65:1	10.5:1	13.6:1
Induction:	4X Keihin CVK30 carburetors	41 mm Fuel injection	Marelli electronic fuel injection, 45mm throttle body	Multipoint sequential electronic fuel injection with forced air induction	Electronic	Airbox with front dynamic air intakes. Variable length intake ducts controlled via ECU. 4 Marelli 48-mm throttle bodies with 8 injectors and latest generation Ride-by-Wire engine management. Choice of three different engine maps selectable by the rider with bike in motion: T (Track), S (Sport), R (Road) Magneti Marelli digital electronic ignition system integrated in engine control system, with one spark plug per cylinder and "stick-coil"-type coils
Ignition:	Full transistor	Digital CDI	Marelli electronic	Digital - inductive type	CDI	Electronic digital ignition integrated in the fuel management system.
Starting:	Electric	Electric	Electric	Electric	Electric	Electric
Transmission:	6 Speed	6 Speed	6 Speed	6 Speed	CVT, auto	6 Speed gearbox cassette type
Final Drive:	Chain	Chain	Chain, gear ration:15/39	O-ring chain	Belt	Chain
Front Suspension:	Telescopic forks	45 mm Upside-down forks, preload, dump and rebound adjustable	43 mm Marzocchi upside down fork	41mm Kayaba upside down forks, with adjustable preload, rebound and compression damping,	Telescopic fork	Öhlins Racing Fork with TIN surface treatment Fork with 43 mm stanchions. Low profile forged aluminium radial calliper mounting bracket. Adjustable spring preload and hydraulic compression and rebound damping. Adjustable Öhlins steering damper
Rear Suspension:	Dual shocks	Monoshock, preload, dump and rebound adjustable.	Twin shock absorbers, spring preload	Kayaba monoshock with piggy back reservoir, adjustable for preload, rebound and compression damping,	Twin sided swing arm with 5-way preload	Double braced aluminium swingarm; mixed low thickness and sheet casting technology. Öhlins Racing monoshock with piggy-back, fully adjustable in: spring preload, wheelbase length, hydraulic in compression and rebound. APS progressive linkages.
Front Brakes:	2x discs	2 x 320 mm Discs, 4 piston calipers	2x 320 mm Semi-floating discs, 4 piston calipers	2 x 308mm Floating discs, Nissin4 piston radial calipers	Double hydraulic discs, 275 mm, with ABS	2 x Ø320 mm diameter floating stainless steel disc with lightweight stainless steel rotor and aluminium flange with 6 pins. Brembo monobloc radial calipers with 4 x Ø30 mm opposing. Sintered pads. Radial pump and metal braided brake hose
Rear Brakes:	Single disc	Single 220 mm disc, 2 piston caliper	Single 245 mm disc, 2 piston caliper	Single 220 mm disc, 1 piston caliper	Disc, 275 mm, with ABS	Single Ø220 mm diameter disc, Brembo floating caliper with two Ø32 mm isolated pistons. Pump with integrated tank and metal braided hose
Front Tyre:	110/80-17	120/70 ZR17	120/70 ZR17	120/80 ZR17	120/70-R15 56S	120/70 ZR17
Rear Tyre:	140/70-18	190/50 ZR17	180/55 ZR17	180/55 ZR17	160/60-R14 65H	200/55 ZR 17 (alternative: 190/50 ZR 17; 190/55 ZR17)
Seat Height:	770 mm / 30.1 in	800 mm / 31.5 in	825 mm / 32.5 in	805 mm / 31.7 in	755 mm / 29.7 in.	845 mm / 33.2 in
Fuel Capacity:	14 Litres / 3.6 US gal	18 Litres / 4.7 gal	15 Litres / 4.0 US gal / 3.3 Imp gal	17.4 Litres / 4.6 US gal / 3.8 Imp gal	14.2 L / 3.75 US gal	18.5 Litres / 4.9 US gal