Triumph Street Twin (2019-2020) vs KTM 300 EXC Hardenduro (2025) vs BMW R 45 (1978-79)

Comparison technical specifications

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Make:	Triumph	KTM	BMW
Model:	Street Twin	300 EXC Hardenduro	R 45
Years:	2019-2020	2025	1978-79
Engine:	Four stroke, 270° Crank angle parallel twin, SOHC, 8 valves	Two stroke, Two stroke, single cylinder, with reed intake and exhaust control	Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder.
Capacity:	900 cc / 54.9 cu-in	293.2 cc / 17.9 cu-in	453 cc / 27.6 cu in.
Bore x Stroke:	84.6 x 80 mm	72 x 72 mm	70 x 61.5 mm
Cooling System:	Liquid cooled	Liquid cooled	Air cooled
Induction:	Multipoint sequential electronic fuel injection, ride by wire	Keihin EFI, 39 mm throttle body	2 x Bing V65 carburetors
Ignition:	Digital	Vitesco Technologies EMS	Bosch contact free electronic ignition
Starting:	Electric	Electric	Kick
Transmission:	5-Speed	6 Speed	5 Speed
Final Drive:	O ring Chain	X-Ring 520	Shaft
Front Suspension:	41 mm Kayaba fork, non-adjustable with cartridge damping	48 mm WP XACT-USD	Telescopic hydraulic forks
Front Wheel Travel:	120 mm / 4.7 in	300 mm / 11.8 in	175 mm / 6.9"
Rear Suspension:	Kayaba twin shocks with adjustable preload	WP XPLOR Monoshock with PDS, Aluminium-reinforced polyamide	Long swinging arm with adjustable strut
Rear Wheel Travel:	120 mm / 4.7 in	310 mm / 12.2 in	110 mm / 4.3"
Front Brakes:	Single 310mm floating disc Brembo 4 piston fixed caliper	Single 260 mm disc, 2 piston caliper	2 x 260mm Disc, 2 piston caliper.
Rear Brakes:	Single 255mm disc, Nissin 2 piston floating caliper	Single 220 mm disc, 1 piston caliper	Single 200mm drum
Front Tyre:	100/90-18	90/90-21	1.85 - B18
Rear Tyre:	150/70 R17	140/80-18	2.50 - B18
Fuel Capacity:	12 Litres / 3.2 US gal	9 Litres / 2.4 US gal	22 Litres / 5.8 US gal