BMW R 80G/S (1980)

BMW R 80G/S (1980)

BMW’s latest masterpiece, the R80 G/S, is a revelation in the world of motorcycling. The company’s president, Dr. Eberhard Sarfert, and vice-president, Karl Gerlinger, unveiled the bike in Avignon, France, amidst a gathering of 30 international journalists. Initially, the G/S’s weight and boxer engine design may seem unconventional, but this is where its true strengths lie.

The R80 G/S is not a lightweight enduro, but a machine designed specifically for long-distance touring and off-road excursions. BMW recognized a gap in the market for a dual-purpose bike that could seamlessly transition from pavement to dirt, and they’ve filled it with the G/S. With its 400-pound weight and robust engine, this bike is built for the rigors of cross-country travel.

In our first ride, the R80 G/S proved to be a capable and comfortable companion for both on- and off-road adventures. Its boxer engine provides a unique character, while its design and features ensure a stable and controlled ride. Whether navigating twisty roads or tackling challenging terrain, the G/S delivers. With its innovative design and exceptional capabilities, the BMW R80 G/S is poised to revolutionize the world of motorcycling.

Key Specifications

Engine TypeFour stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder.
Engine Capacity797.5 cc / 48.7 cu in.
Max Power37 kw / 50 hp
Max Torque56.7 Nm / 5.8 kgf-m / 41 ft lb @ 5000 rpm
Fuel Tank Capacity19.5 L / 5.1 US gal
Weight (Wet/Kerb)409 lbs / 186 kg
Seat Height33.9 inches / 860 mm
BMW R 80G/S (1980)

All Specifications

Make & Model

ModelBMW R 80G/S
Year1980

Engine

Engine TypeFour stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder.
Displacement797.5 cc / 48.7 cu in.
Bore x Stroke84.8 x 70.6 mm
Compression Ratio9.2:1
Max Horsepower37 kw / 50 hp
Max Torque56.7 Nm / 5.8 kgf-m / 41 ft lb @ 5000 rpm
Engine Management System2 x Bing constant depression carburetorss
Cooling SystemAir cooled

Performance

Top Speed167 km/h / 104 mph

Transmission

ClutchDry single plate, with diaphragm spring
Gearbox5 Speed
Gear Ratios1st 4.40 / 2nd 2.86 / 3rd 2.07 / 4th 1.67 / 5th 1.50:1
Final DriveShaft

Electrical & Electronics System

StarterElectric & Kick

Chassis & Suspension

Frame TypeDouble loop tubular frame with bolt on rear section
Front SuspensionTelescopic hydraulic forks
Front Suspension Travel7.8 inches / 200 mm
Rear SuspensionMonolever swinging arm
Rear Suspension Travel6.6 inches / 170 mm

Wheels & Brakes

Front Tire Size3.00 – 21
Rear Tire Size4.00 – 18
Front BrakesSingle ∅260mm disc
Rear Brakes∅200mm Drum

Dimension & Weights

Seat Height33.9 inches / 860 mm
Wheelbase67.6 inches / 1465 mm
Ground Clearance175 mm / 6.88 in
Fuel Tank Capacity19.5 L / 5.1 US gal
Wet (kerb/curb) Weight409 lbs / 186 kg

Features

  • Weighs 400 pounds
  • Boxer engine
  • Multi-purpose bike
  • Designed for cross-country touring
  • Suitable for long-distance touring and off-road skills
  • Unique engine layout
  • Unique size and weight in relation to displacement
  • Top-speed potential of around 100 mph
  • Dual-suspension system
  • Rear wheel travel of over 9 inches
  • Yamaha-style monoshock suspension
  • High ground clearance
  • Strong and robust build
  • Unique qualities for its intended purpose
  • Unrivaled in its field for its intended purpose
  • Engine displacement
  • Weight distribution
  • Seat height
  • Ground clearance
  • Engine size and weight
BMW R 80G/S (1980)

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