BMW S 1000RR (2025) vs Yamaha TW 125 (2001-03) vs Suzuki GSX 400S Impulse (1996-98)

Comparison technical specifications

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Make:	BMW	Yamaha	Suzuki
Model:	S 1000RR	TW 125	GSX 400S Impulse
Years:	2025	2001-03	1996-98
Engine:	Four stroke, transverse four cylinder, DOHC, valve actuation via single cam followers, BMW ShiftCam variable intake cam control	Four stroke. single cylinder.	Four stroke, in-line 4 cylinders, DOHC, 4 valves per cylinder
Capacity:	999 cc / 60.9 cu-in	124 cc / 7.6 cu-in	399 cc / 24.3 cu in
Bore x Stroke:	80 x 49.7 mm	57 x 48.8 mm	52 x 47 mm
Cooling System:	Liquid/oil cooled	Air cooled	Liquid cooled
Compression Ratio:	13.3:1	10.0:1	11.8:1
Starting:	Electric	Electric	Electric
Max Power:	154 kW / 206 hp @ 13700 rpm	11.8 hp / 8.6 kW @ 9000 rpm	44 kW / 59 hp @ 12000 rpm
Max Torque:	113 Nm / 83.3 lb-ft @ 11000 rpm	9.7Nm / 7.2 lb-ft @ 8000m rpm	37 Nm / 3.8 kgf-m / 27.3 lb-ft @ 10500 rpm
Transmission:	Claw-shifted 6-speed gearbox with straight cut gears	5 Speed	6 Speed
Final Drive:	Chain 525 17/46	Chain	Chain
Front Suspension:	Upside-down telescopic fork, diameter 45 mm, spring preload, rebound and compression stages adjustable	Telescopic forks	Telescopic forks
Rear Suspension:	Aluminium swing arm, full floater pro, compression and rebound damping adjustable, adjustable spring preload	Monoshock	Dual shocks, preload adjustable.
Front Brakes:	2x 320mm floating disc, radial 4-piston fixed calipers	Single 220mm disc	2 x 290 mm Discs, 2 piston calipers
Rear Brakes:	Single 220 mm disk, single-piston floating caliper	130mm Drum	Single disc, 1 piston caliper
Front Tyre:	120/70 ZR17	130/80-16	110/80-17
Rear Tyre:	190/55 ZR17 (with M wheels: 200/55 ZR17)	180/80-14	130/80-17
Wheelbase:	1457 mm / 57.4 in	1,280 mm / 50.4 in	1435 mm / 56.5 in
Seat Height:	832 mm / 32.4 in	805 mm / 31.7 in	760 mm / 29.9 in
Dry Weight:	176 kg / 388 lbs	106 kg / 260 lbs	177 kg / 389 lbs
Fuel Capacity:	16.5 Litres / 4.35 US gal	7 Litres / 1.9 US gal	18 Litres / 4.8 US gal / 4.0 Imp gal