Triumph America (2009-10) vs Yamaha XJ 750E (1981-82) vs KTM 125 EXC Enduro (1997-98) vs Norton Atlas Ranger (2019) vs Jawa 420 Prototype (1982) vs Norton C652 SM International (1999) vs Triumph Bonneville (2009) vs Norton Commando 961 S.F. MKII (2016-17)

Comparison technical specifications

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Make:	Triumph	Yamaha	KTM	Norton	Jawa	Norton	Triumph	Norton
Model:	America	XJ 750E	125 EXC Enduro	Atlas Ranger	420 Prototype	C652 SM International	Bonneville	Commando 961 S.F. MKII
Years:	2009-10	1981-82	1997-98	2019	1982	1999	2009	2016-17
Engine:	Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder	Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder.	Two stroke, single cylinder	Four stroke, parallel twin. 270 degree firing order. Chain driven DOHC, with idler gear.	Four stroke, single cylinder, SOHC, 4 valves per cylinder.	Single cylinder, 4-stroke, 4-valve	Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder	Four stroke, parallel twin, push rod, hydraulic lifter, 2 valves per cylinder
Capacity:	865 mm / 52.8 cu in	749 cc / 45.6 cu-in	124.8 cc / 7.6 cu in	650 cc / 39.6 cu-in	420 cc / 25.6 cu in	652 cc / 39.8 cu in	865 cc / 52.8 cu in	961 cc / 58.6 cu in
Bore x Stroke:	90 x 68 mm	65 х 56.4 mm	54 x 54.5 mm	82 x 61.5mm	85 x 73 mm	100 x 83 mm	90 x 68 mm	88 x 79 mm
Cooling System:	Air-cooled	Air cooled	Liquid cooled	Liquid cooled	Liquid cooled	Liquid cooled	Air-cooled	Air cooled
Transmission:	5 Speed	5 Speed	6 Speed		5 Speed	5-Speed	5 Speed	5 Speed, constant mesh
Final Drive:	Chain, X-ring	Chain	Chain	Chain	Chain	Chain	Chain, X-ring	Chain, 525 "O" ring
Front Suspension:	41 mm Fork	36mm Showa forks adjustable air pressure anti-dive resistance.150mm wheel travel.	43 mm Marzocchi Magnum 45 upside down fork and shocks	50mm diameter Roadholder USD forks. Preload, compression and rebound adjustable	Hydraulic telescopic forks	Telescopic fork	41mm Kayaba telescopic forks	Ø43 mm Öhlins USD, adjustable preload, compression, and rebound damping.
Rear Suspension:	Chrome spring twin shocks with adjustable preload	Dual dampers adjustable for spring preload rebound damping.97.5 wheel travel.	Fully adjustable Ohlins Type 3A mono shock	Roadholder monoshock with rising rate linkage and piggyback reservoir. Adjustable preload.	Single shock	Mono shock	Kayaba chrome spring twin shocks with adjustable preload	Öhlins reservoir-style twin shocks, adjustable ride height, preload, compression, and rebound damping.
Front Brakes:	Single 310mm disc, 2 piston caliper, Nissen	2x 300mm disc 2 piston calipers	Single 260 mm disc,2 piston caliper	2 x 320mm full floating Brembo discs. Radially mounted twin Brembo monoblock callipers with ABS. Brembo master cylinder.	Single disc	Single disc, Ø320 mm	Single 310 mm disc, 2 piston calipers	Brembo 2 x Ø320 mm fully-floating high carbon stainless steel discs, 4 piston Brembo radially mounted calipers. Brembo front brake master cylinder with integral reservoir
Rear Brakes:	Single 255mm disc, 2 piston caliper, Nissen	Drum	Single 220 mm disc,1 piston caliper	Single 245mm Brembo disc. Brembo twin piston rear calliper with ABS. Brembo master cylinder.	Expanding drum	Single disc	Single 255 mm disc, 2 piston calipers	Brembo single Ø220 mm disc, 2 piston caliper. Brembo rear brake master cylinder
Fuel Capacity:	19.3 Litres / 5.1 US gal / 4.2 Imp gal	19 Litres / 5.0 US gal	9 L / 2.4 US gal / 2.0 Imp gal	15 Litres / 3.9 US gal	20 L / 5.2 US gal	20 L / 5.3 US gal	16.6 Litres / 4.4 US gal / 3.7 Imp gal	17 Litres / 4.5 US gal