R80GS
Start of Production | 1987 |
Click to View Available Literature |
End of Production | 1996 | |
Numbers Produced | 11,375 | |
Price | 10,950 DM | |
Engine |
| |
Motor Type | Four-stroke two cylinder horizontally opposed "Boxer" engine, air cooled | |
Bore x Stroke | 84.8 x 70.6 mm (3.33 x 2.77 in) | |
Displacement | 797.5 cc | |
Max Power | 50 hp (37 KW) at 6,500 rpm | |
Max Torque | 61 Nm / 44 ft lb at 3,750 rpm | |
Compression Ratio | 8.2 : 1 | |
Valves Per Cylinder | 2 | |
Valve Control | OHV, using push rod and rocker arm | |
Carburation System | 2 constant depression carburettors, Bing 64/32/349 - 64/32/350 | |
Engine Lubricating System | Wet sump | |
Power Transmission |
| |
Clutch | Dry single plate, with lever action diaphragm spring | |
Number of Gears | 5 | |
Gear Selection | Dog type gearbox (ratchet foot lever) | |
Gearbox Ratios | 4.4 / 2.86 / 2.07 / 1.67 / 1.50 : 1 | |
Rear Wheel Ratio | 1 : 3.20 | |
Bevel/Crownwheel | 10 / 32 teeth | |
Electrical System |
| |
Ignition System | Contact free electronic ignition (Bosch) | |
Alternator | Bosch 280 W | |
Starter | Bosch 0.7 Kw | |
Spark Plugs | Bosch W 7 DC / Beru 14-7 DU/ Champion N9YC | |
Chassis |
| |
Type of Frame | Double loop tubular frame with bolt on rear section | |
Front wheel suspension | Telescopic fork with hydraulic shock absorber | |
Rear wheel suspension | BMW Paralever swinging arm | |
Spring Travel Front/Rear | 225 / 180 mm (8.85 x 7.08 in) | |
Wheel Rims, Front | 1.85 x 21 MTH 2 | |
Wheel Rims, Rear | 2.50 x 17 MTH 2 | |
Tyres, Front | 90 / 90 x 21 S | |
Tyres, Rear | 130 / 80 x 17 S | |
Brakes, Front | Single disc brake 285 mm / 11.22 in diameter. Brembo 2 piston caliper | |
Brakes, Rear | Simplex drum brake 200 mm / 7.87 in diameter | |
Dimensions / Weights |
| |
Length x Width x Height | 2290 x 1000 x 1165 mm (90.15 x 39.37 x 45.86 in) | |
Wheel Base | 1514 mm / 59.60 in | |
Fuel Tank Capacity | 24 litres / 5.27 gal / 6.34 gal US | |
Unladen Weight with Full Tank | 210 Kg / 462 lb | |
Max. Permissible Weight | 420 Kg / 925 lb | |
Ground Clearance | 200 mm / 7.87 in | |
Seat Height (Unladen) | 850 mm (33.5 inches) | |
Fuel Consumption | 4.7 litres 100 Km (at constant 90 Kph) / 60 mpg / 50 mpg US | |
Top Speed | 168 Kph / 104 mph | |
Acceleration 0 - 100 Kph / 62 mph | 6 seconds | |
Information kindly supplied by P.Hawksley | ||
Information kindly supplied by P.Hawksley