Yamaha RD 250 (1976) vs Yamaha GTS1000 / ABS (1995-96) vs Yamaha WR 250F (2001-02) vs Suzuki GSX-R 750 K5 (2005) vs Yamaha YZF 1000 R1 (2015)

Comparison technical specifications

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Make:	Yamaha	Yamaha	Yamaha	Suzuki	Yamaha
Model:	RD 250	GTS1000 / ABS	WR 250F	GSX-R 750 K5	YZF 1000 R1
Years:	1976	1995-96	2001-02	2005	2015
Engine:	Two stroke, torque induction, parallel twin	Four stroke, transverse four cylinder, DOHC, 5 valves per cylinder.	Four stroke, single cylinder, DOHC, 5 valve	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.
Capacity:	247 cc / 15.0 cu-in	1002 cc / 61.2 cu-in	249 cc / 15.2 cu-in	749 c / 45.7 cub. in.	998 cc / 60.9 cu-in
Bore x Stroke:	54 х 54 mm	75.5 X 56 mm	77 x 53.6 mm	72 x 46 mm	79.0 x 50.9 mm
Cooling System:	Air cooled	Liquid cooled	Liquid cooled,	Liquid cooled	Liquid cooled
Compression Ratio:	6.7:1	10.8:1	12.5:1	12.3:1	13.0:1
Lubrication:	Autolube	Wet sump	Dry sump	Wet sump	Wet sump
Induction:	2x Mikuni VM28 SC carburetor	Electronic fuel infection.	Keihin FCR-MX37 flat-slide w/throttle position sensor)	Fuel injection, 46 mm throttle bodies	Fuel Injection with YCC-T and YCC-I
Ignition:	Battery and coil with breaker points	Digital	Digital CDI	Digital DC-CDI	TCI: Transistor Controlled Ignition
Starting:	Kick	Electric	Electric & Kick	Electric	Electric
Clutch:	Wet multi-plate	Wet, multiple discs, cable operated	Wet, multiple discs, cable operated	Wet, multiple discs	Wet, Multiple Disc
Transmission:	6 Speed	5 Speed	5 Speed	6 Speed, constant mesh	6-speed w/multiplate slipper clutch
Final Drive:	Chain	Chain	Chain	#525 Chain, O-ring sealed, 108 links	"O" ring chain
Front Suspension:	Telescopic forks	Single sided swingarm variable preload, compression and rebound damping	48mm Fully adjustable inverted forks	Inverted Showa cartridge-type front fork with 43mm inner tubes and fully adjustable damping and spring preload	43mm KYB® inverted fork; fully adjustable
Rear Suspension:	Dual shocks	Monocross variable preload, compression and rebound damping	Fully adjustable link Monocross	Showa Link-type, gas/oil damped, fully adjustable spring preload and compression damping, 4-way adjustable rebound damping	KYB® Single shock w/piggyback reservoir, 4-way adjustable
Front Brakes:	Single disc	Single 330mm disc 6 piston caliper with ABS	Single 250mm disc 2 piston caliper	2 x 300 mm Discs, Tokico 4 piston calipers	2x 320mm discs 4 piston calipers, UBS ABS
Rear Brakes:	Drum	Single 282mm disc 2 piston caliper	Single 240mm disc 1 piston caliper	Single 220 mm disc, Tokico 2 piston caliper	Single 220mm disc 1 piston caliper, UBS ABS
Front Tyre:	3.00S-18-4PR	130/60 ZR17	80/100-21	120/70 ZR17	120/70 ZR17
Rear Tyre:	3.50S-18-4PR	170/60 ZR17	100/100-18	180/55 ZR17	190/55 ZR17
Dimensions:	Length 2030 mm / 79.9 in Width 830 mm / 32.6 in Height 1085 mm / 42.7 in	Length 2170 mm / 85.4 in Width 700 mm / 27.5 in Height 1320 mm / 51.9 in	Height 1275 mm / 50.2 in Width 826 mm / 32.5 in Length 2315 mm / 91.1 in	Length 2075 mm / 81.7 in. Width 715 mm / 28.1 in. Height 1145 mm / 45.1in.	Length 2054.8 mm / 80.9 in Width 690 mm / 27.2 in Height 1150 mm / 45.3 in
Wheelbase:	1325 mm / 52.1 in	1495 mm / 58.9 in	1475 mm / 58.1 in	1396 mm / 55 in.	1419 mm / 55.9 in
Fuel Capacity:	16.5 Liters / 4.2 US gal	20 Litres / 5.28 gal	8 Liters / 2.1 US gal	17 Litres / 4.5 US gal / 3.7 Imp gal	17 Liters / 4.5 gal