BMW R 80 G/s - 1985 Specifications and Reviews
The 1985 BMW R 80 G/S is a versatile adventure bike suited for riders seeking reliable, all-terrain capability. Powered by an air-cooled 797cc boxer twin producing 50 horsepower, it delivers dependable torque and legendary durability. This machine pioneered the modern adventure touring category, excelling both on pavement and unpaved roads with its balanced handling and robust shaft-drive transmission.
General information | |
| Category | Allround |
| Year | 1985 |
| Model | BMW R 80 G/S |
Engine and Transmission Specifications | |
| Transmission typefinal drive | Shaft drive (cardan) |
| Gearbox | 5-speed |
| Cooling system | Air |
| Fuel control | OHV |
| Valves per cylinder | 2 |
| Bore x stroke | 84.8 x 70.6 mm (3.3 x 2.8 inches) |
| Compression | 8.2:1 |
| Power | 50.00 |
| Stroke | 4 |
| Engine type | Two cylinder boxer |
| Capacity: | 797.00 ccm (48.63 cubic inches) |
| | |
Physical measures and capacities | |
| Weight incl. oil, gas, etc | 196.0 kg (432.1 pounds) |
BMW R 80 G/s dimensions and frame | |
| Rear brakes | Expanding brake |
| Front brakes | Single disc |
| Rear tyre dimensions | 4.00-18 |
| Front tyre dimensions | 3.00-21 |
Speed and acceleration | |
| Top speed | 173.0 km/h (107.5 mph) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Fuel capacity | 19.50 litres (5.15 gallons) |
Performance Profile & Rider Fit
50 hp
Peak Power
5.8s
0-60 mph
107.5 mph
Top Speed
Best For
Track8%
City58%
Cornering50%
Daily Riding65%
Touring78%
Passenger62%
Rider Profile
| Best For | Suited to intermediate riders comfortable managing a tall, top-heavy machine; forgiving power delivery welcomes newcomers to adventure riding but weight demands care off-road. |
| Purpose | The original dual-sport adventure tourer: built to cover long distances on tarmac and rough tracks alike, ideal for exploration and round-the-world journeys. |
| Rider Fit | Upright, roomy ergonomics with a tall seat and 21-inch front wheel. At 196kg it feels planted but hefty in the dirt; wide boxer twin and shaft drive keep maintenance simple. |
| Character | A rugged, unhurried icon. The torquey air-cooled boxer and bulletproof shaft drive make it dependable and characterful rather than fast - the bike that founded the GS legend. |
| Not Ideal For | Not for speed seekers, track riders, or those wanting nimble technical enduro performance; its weight and modest power frustrate anyone chasing outright pace. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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