Description
BMW R45 (1984) custom
The BMW R45 is a classic middleweight motorcycle that was part of BMW's airhead boxer twin lineup in the 1980s. Here's a comprehensive overview of this model from 1984:
General Specifications
Production Years: 1978-1985 (this specific model is from 1984)
Category: Standard/ Roadster
Manufacturer: BMW Motorrad (Germany)
Model Type: R45
Engine & Performance
Engine Type: Air-cooled, 4-stroke boxer twin (opposed twin)
Displacement: 473cc
Bore × Stroke: 70mm × 61. 5mm
Compression Ratio: 8. 2:1
Carburetion: Two Bing slide carburetors (32mm)
Maximum Power: Approximately 35 hp (26 kW) at 7, 250 rpm
Maximum Torque: 39 Nm (28. 8 lb-ft) at 5, 500 rpm
Ignition System: Electronic ignition
Cooling System: Air-cooled
Lubrication: Wet sump
Transmission & Drivetrain
Gearbox: 5-speed manual
Clutch: Single dry plate with diaphragm spring
Final Drive: Shaft drive (cardan)
Chassis & Dimensions
Frame Type: Tubular steel double cradle frame
Front Suspension: Telescopic fork
Rear Suspension: Dual shock absorbers with adjustable preload
Front Brake: Single disc, 260mm diameter
Rear Brake: Single drum, 200mm diameter
Wheelbase: 1, 465mm (57. 7 inches)
Seat Height: 810mm (31. 9 inches)
Ground Clearance: 165mm (6. 5 inches)
Dry Weight: Approximately 185 kg (408 lbs)
Fuel Capacity: 22 liters (5. 8 gallons)
Features
Instrumentation: Analog speedometer and tachometer
Lighting: Round headlight, traditional tail light
Starter: Electric with kick-start backup
Battery: 12V
Performance
Top Speed: Approximately 160 km/ h (100 mph)
Fuel Economy: Around 4. 5 L/ 100km (52 mpg US)
The BMW R45 was known for its reliability, smooth operation, and excellent build quality. It represented BMW's entry-level offering in the boxer twin range, providing a more accessible option for riders seeking the BMW riding experience in a smaller, more manageable packa
