Suzuki GSX 1400Z (2004-05) vs Aprilia RS4 125 (2011) vs Yamaha YZF-R 125 (2022) vs Aprilia Atlantic 200 (2008-10) vs BMW R 1200RT (2005) vs Norton Commando 850 Roadster MKII (1975) vs Suzuki TL1000R (2002)

Comparison technical specifications

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Make:	Suzuki	Aprilia	Yamaha	Aprilia	BMW	Norton	Suzuki
Model:	GSX 1400Z	RS4 125	YZF-R 125	Atlantic 200	R 1200RT	Commando 850 Roadster MKII	TL1000R
Years:	2004-05	2011	2022	2008-10	2005	1975	2002
Engine:	Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.	Four stroke, single cylinder, DOHC, 4 valves	Four stroke, single cylinder, SOHC, 4 valve	Four stroke, single cylinder, SOHC, 4 valves per cylinder	Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder	Four stroke, parallel twin cylinder, push rod 2 valves per cylinder.	Four stroke, 90°-V-twin, DOHC, 4 valves per cylinder
Capacity:	1402 cc / 85.6 cu in	124.8 cc / 7.6 cu in	124.7 cc / 7.6 cu-in	199 cc / 12.1 cu in	1170 cc / 71.4 cu in	829 cc / 50.6 cu in	996 cc / 60.8 cu-in
Bore x Stroke:	81 x 68 mm	58 X 47 mm	52 x 58.6 mm	72 x 48.6 mm	101 x 73 mm	77 x 89 mm	98 x 66 mm
Compression Ratio:	9.5:1	12.5 ± 0.5:1	11.2:1	11.5:1	12.0:1	8.5:1	11.7:1
Cooling System:	Air/oil cooled	Liquid cooled	Liquid cooled	Liquid cooled	Air/Oil cooled	Air cooled	Liquid cooled
Induction:	Fuel injection with 34mm throttle bodies	Electronic injection	Electronic fuel Injection	Keihin CVK 7C Ø 30 mm or Walbro WVF 7D Ø29 mm	BMW engine management, BMS-K	2 x Ø32 mm Amal concentric carburetors	Mikuni Denso Fuel Injection
Ignition:	Electronic ignition	Electronic with CDI capacity discharge	TCI	Electronic, Magneti Marelli	Digital engine management	120W Lucas alternator	Digital transistorized
Starting:	Electric	Electric	Electric	Electric	Electric	Electric and kick	Electric
Max Power:	78 kW / 105 hp @ 6800 rpm	11.7 kW / 16 hp @ 10500 rpm	11 kW / 14.7 hp @ 9000 rpm	10 kW / 13.5 hp @ 8000 rpm	81kW / 110 hp @ 7500 rpm	60 hp / 44.7 kW @ 6200 rpm	98.4 kW / 135 hp @ 9500 rpm
Transmission:	6 Speed	6 Speed	6 Speed, Constant mesh	Automatic	6 Speed	4 Speed	6 Speed
Final Drive:	Chain	Chain	Chain	Belt	System Enclosed driveshaft with two universal joints	Chain	Chain
Front Suspension:	46 mm Telescopic forks, preload, compression and rebound damping adjustable	Ø41 mm Upside down fork	41mm Upside-down telescopic fork,	Hydraulic forks, Ø 35 mm	BMW Motorrad Telelever, stanchion diameter 35mm, central spring strut, rebound damping electronically adjustable with standard ESA	Telescopic forks	Inverted telescopic fork, coil spring, fully adjustable spring preload, rebound and compression damping
Rear Suspension:	Dual piggyback reservoir shocks fully adjustable for preload, compression and rebound damping	Asymmetric swingarm with monoshock	Swingarm, link type suspension	Single hydraulic shock, adjustable preload	Die-cast aluminium single-sided swinging arm with BMW Motorrad EVO-Paralever, spring preload hydraulically adjustable to continuously variable levels by means of electronically adjustable ESA, rebound damping with standard ESA	Swing arm with Girling coil springs	Rotary damping system, fully adjustable spring preload, compression and rebound damping
Front Brakes:	2 x 320 mm Discs, 6 piston calipers	Single Ø300 mm disc, 4 piston caliper	Single 292mm disc	Single Ø 240 mm disc, with hydraulic transmission	2 x 320mm Discs, 4 piston callipers	Single disc	2 x 320 mm Discs, 6 piston calipers
Rear Brakes:	Single 260 mm disc, 2 piston caliper	Single Ø218 mm disc, 1 piston caliper	Single 230mm disc	Single Ø 190mm disc, with hydraulic transmission, combined with front	Single 265mm disc, 2 piston caliper	Single disc	Single 220 mm disc, 2 piston caliper
Front Tyre:	120/70 ZR17	110/80 17	100/80 -17 M/C	110/90 -13	120/70 ZR17	4.10-19	120/70 ZR17
Rear Tyre:	190/50 ZR17	130/70 17	130/70 -17 M/C	130/70 -13	180/60 ZR17	4.10-19	190/50 ZR17
Fuel Capacity:	22 Litres / 5.8 US gal / 4.8 Imp gal	14.5 Liters / 3.8 gal	11.5 Litres / 3.0 US gal	10.5 Litres / 2.8 US gal	27 Liters / 7.1 US gal	19 Litres / 5.0 US gal	17 Litres / 4.4 US gal / 3.7 Imp gal