R80/7
Start of Production | 1977 |
Click to View Available Literature |
End of Production | 1984 | |
Numbers Produced | 18,522 | |
Price | 7,990 DM | |
Engine |
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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 | 55 hp (40 KW) at 7,000 rpm or 50 hp (37 Kw) at 7,250 rpm | |
Max Torque | 64 Nm / 47 ft lb at 5,500 rpm or 58 Nm / 42 ft lb at 5,500 rpm | |
Compression Ratio | 9.2 : 1 or 8.2 : 1 | |
Valves Per Cylinder | 2 | |
Valve Control | OHV, using push rod and rocker arm | |
Carburation System | 2 constant depression carburettors, Bing 64/32/201 - 64/32/202 | |
Engine Lubricating System | Wet sump | |
Power Transmission |
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Clutch | Dry single plate, with 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 (optional sport version: 3.38 / 2.43 / 1.93 / 1.67 / 1.50 | |
Rear Wheel Ratio | 1: 3.20 or 1 : 3.36 | |
Bevel/Crownwheel | 10 / 32 or 11 / 37 teeth | |
Electrical System |
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Ignition System | Battery ignition. From 1981 model: Contact free electronic ignition | |
Alternator | Bosch 12 V/280 W | |
Starter | Bosch 0.7 Kw | |
Spark Plugs | Bosch W 175 T 30 / Beru 175/14/3 A / Champion N10Y | |
Chassis |
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Type of Frame | Double loop tubular frame with bolt on rear section | |
Front wheel suspension | Telescopic fork with hydraulic shock absorber | |
Rear wheel suspension | Long swinging arm with adjustable strut | |
Spring Travel Front/Rear | 200 / 125 mm (7.87 x 4.92 in) | |
Wheel Rims, Front | 1.85 B 19 | |
Wheel Rims, Rear | 2.50 B 18 | |
Tyres, Front | 3.25 H 19 | |
Tyres, Rear | 4.00 H 18 | |
Brakes, Front | Dual disc brake 260 mm / 10.23 in diameter. ATE 1 piston caliper | |
Brakes, Rear | Simplex drum brake 200 mm / 7.87 in diameter | |
Dimensions / Weights |
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Length x Width x Height | 2180 (from 1978: 2210) x 746 x 1080 mm (85.82 (87.00) x 29.37 x 42.51 in) | |
Wheel Base | 1465 mm / 57.67 in | |
Fuel Tank Capacity | 24 litres / 5.27 gal / 6.34 gal US | |
Unladen Weight with Full Tank | 215 Kg / 473 lb | |
Max. Permissible Weight | 398 Kg / 876 lb | |
Ground Clearance | 165 mm / 6.49 in | |
Seat Height (Unladen) | 810 mm (31.9 inches) | |
Fuel Consumption | 4.75 litres or 5.0 litres100Km (at constant 90 Kph) / 59 mpg / 47 mpg US or 56 mpg / 47 mpg US | |
Top Speed | 180 Kph / 111 mph or 170 Kph / 105 mph | |
Acceleration 0 - 100 Kph / 62 mph | 5.9 seconds or 6.4 seconds | |
Information kindly supplied by P.Hawksley | ||
