BMW R 45 (1978-81) technical specifications

BMW R 45 is produced in 1978-81. Engine is Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder., displacement 453 cc / 27.6 cu in. , produces power 20 kW / 27 hp @ 7250 rpm and 37.5 Nm / 3.82 kgf-m / 27.65 lb-ft @ 5000 rpm. BMW R 45 weighs 185 kg / 408 lbs. BMW R 45 has 4 photos.

Technical specifications

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Model:	R 45
Years:	1978-81
Engine:	Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder.
Capacity:	453 cc / 27.6 cu in.
Bore x Stroke:	70 x 61.5 mm
Compression Ratio:	9.2:1
Cooling System:	Air cooled
Induction:	2 x Bing V65 carburetors
Ignition:	Bosch contact free electronic ignition
Starting:	Kick
Max Power:	20 kW / 27 hp @ 7250 rpm
Max Torque:	37.5 Nm / 3.82 kgf-m / 27.65 lb-ft @ 5000 rpm
Transmission:	5 Speed
Final Drive:	Shaft
Front Suspension:	Telescopic hydraulic forks
Front Wheel Travel:	175 mm / 6.9"
Rear Suspension:	Long swinging arm with adjustable strut
Rear Wheel Travel:	110 mm / 4.3"
Front Brakes:	2 x ∅260mm Disc, 2 piston caliper.
Rear Brakes:	Single ∅200mm drum
Front Tyre:	1.85 - B18
Rear Tyre:	2.50 - B18
Dry Weight:	185 kg / 408 lbs
Fuel Capacity:	22 L / 5.8 US gal