Yamaha XS 250 Special (1980-81) vs Yamaha YZF 600R Thundercat (2005-07) vs Yamaha XVS 650 V-Star Classic (2008-10) vs Yamaha SR 400 (1988-92) vs Yamaha XVS 1100 V-Star Silverado (2010-11) vs Cagiva Elefant 900AC CAT (1993)

Comparison technical specifications

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Make:	Yamaha	Yamaha	Yamaha	Yamaha	Yamaha	Cagiva
Model:	XS 250 Special	YZF 600R Thundercat	XVS 650 V-Star Classic	SR 400	XVS 1100 V-Star Silverado	Elefant 900AC CAT
Years:	1980-81	2005-07	2008-10	1988-92	2010-11	1993
Engine:	Four stroke, 180° parallel twin, SOHC, 2 valves per cylinder	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder	Four stroke, 70°V-twin cylinder, SOHC	Four stroke, single cylinder, SOHC, 2 valves per cylinder.	Four stroke, 75° V-twin cylinder SOHC, 4 valve per cylinder	Four stroke, 90° “L” twin cylinder, SOHC, desmodromic 2 valve per cylinder
Capacity:	248 cc / 15.2 cu-in	599 cc / 36.5 cu-in	649 cc / 39.6 cu-in	399 cc / 24.3 cu-in	1063 cc / 64.8 cu-in	904 cc / 55.1 cu-in
Bore x Stroke:	55 х 52.4 mm	62 x 49.6 mm	81 x 63mm	87 х 67.2 mm	95 x 75 mm	92 x 68 mm
Cooling System:	Air cooled	Liquid cooled	Air cooled	Air cooled	Air cooled	Air cooled
Compression Ratio:	9.3:1	12.0:1	9.0:1	8.5:1	8.3:1	9.2:1
Induction:	2x 32mm Mikuni carburetors	4 x 36 mm Keihin CV downdraft carburetors	2x 28mm Mikuni BDS28 CV carburetors	BSR33 carburetor	Carburetors	Mikuni BDST 38 carburetors
Ignition:	Coil and cb	Digital TCI	Digital TCI	CDI	TCI	Marelli electronic inductive discharge
Starting:	Kick	Electric	Electric	Kick	Electric	Electric
Max Power:	26 hp / 20.1 kW @ 9500 rpm	72.9 kW / 100 hp @ 11500 rpm	40 hp / 29.2 kW @ 6500 rpm	27 hp / 17.1 KW @ 7000 rpm	62 hp / 45.2 kW @ 5750 rpm	95 hp / 70 kW @ 8500 rpm
Max Torque:	2.1 kgf-m / 15.2 lb-ft @ 8500 rpm	65.7 Nm / 6.7 kgf-m / 48.7 lb-ft @ 9500 rpm	50.9 Nm / 37.5 lb-ft @ 3000 rpm	27.4 Nm / 6.3 kgf-m @ 6500 rpm	85 Nm / 62.7 lb-ft @ 2500 rpm	78 Nm / 57.5 lb-ft @ 5250 rpm
Transmission:	6 Speed	6 Speed	5 Speed	5 Speed	5 Speed	6 Speed
Final Drive:	Chain	530 O-ring chain OEM sprocket sizes per tooth Front= 15 Back= 47	Shaft	Chain	Shaft	Chain
Front Suspension:	Telescopic forks	41 mm telescopic fork adjustable preload, compression and rebound damping	41mm forks	Telescopic fork	41mm telescopic front fork	45mm Showa upside down telescopic forks
Rear Suspension:	Dual shocks, swing arm, 5-position preload adjustable	Monoshock adjustable preload, bump and rebound	Adjustable link Monocross	Dual shocks	Link-type, preload-adjustable single rear shock	Rising rate box, monoshock adjustable for preload
Front Brakes:	Single 267mm disc	2x 300 mm Discs, 4 piston calipers	Single 298mm disc	Single disc	2x 298mm discs 2 piston calipers	2x 282mm discs 4 piston calipers
Rear Brakes:	160mm Drum	Single 245mm disc, 2 piston caliper	200mm Drum	Drum	Single 282mm disc 1 piston caliper	Single 240mm disc 4 piston caliper
Front Tyre:	3.00-18	120/60-17	130/90-16	3.50-19	130/90-16	100/90-19
Rear Tyre:	120/90 x 16	160/60-17	170/80-15	4.00-16	170/80-15	140/80-17
Wheelbase:	1375 mm / 54.1 in	1415 mm / 55.7 in	1626 mm / 64.0 in	1410 mm / 55.5 IN	1640 mm / 64.6 in	1570 mm / 61.8 in
Seat Height:	770 mm / 30.3 in	810 mm / 31.7 in	710 mm / 28 in	790 mm / 30.9 in	710 mm / 28 in	857 mm / 33.7 in
Fuel Capacity:	14 Litres / 3.7 US gal	19 Litres / 5.0 US gal / 4.2 Imp gal	16 Litres / 4.2 US gal	12 Litres / 3.2 gal	17 Litres / 4.4 US gal	22 Litres / 5.8 US gal