1991 BMW R80R
| Engine Engine type Bore x Stroke Displacement Valves Compression ratio Max Power Max Torque Fuel system Transmission Final drive Clutch Ignition type Starting system Lubrication Exhaust Spark plug Alternator Gear ratios | Four-stroke two cylinder horizontally opposed "Boxer" engine, air cooled 84.8 x 70.6 mm (3.33 x 2.77 inches) 797.5 cc 2 valves per cylinder; OHV, using push rod and rocker arm 8.2:1 50hp (37kW) @ 6500 rpm, 34hp (25Kw) @ 6000 rpm or 27hp (20Kw) @ 5500 rpm 61Nm/44 ft lb @ 3750 rpm, 50Nm/36 ft lb @ 3750 rpm or 45Nm/33 ft lb @ 3500 rpm 2 constant depression carburettors, Bing V 64/32/349 - 64/32/350 5-speed; Dog type gearbox (ratchet foot lever) Cardan Dry single plate, with lever action diaphragm spring Contact free electronic ignition (Bosch) Electric starter Wet sump Bosch W 7 DC / Beru 14-7 DU Bosch 240 W 4.4 / 2.86 / 2.07 / 1.67 / 1.50 |
| Dimensions Frame type Castor Overall length Overall width Overall height Wheelbase Seat height Ground clearance Dry weight Fuel capacity Colors Suspension (front) Suspension (rear) Tyre (front) Tyre (rear) Brake (front) Brake (rear) | Double loop tubular frame with bolt on rear section 2210 mm (87.00 inches) 1000 mm (39.37 inches) 1190 mm (46.85 inches) 1495 mm (58.85 inches) 800 mm (31.50 inches) 200 mm (7.87 inches) 217 kg 24 litres Telescopic fork with hydraulic shock absorber BMW Paralever swinging arm 110 / 80 V R18 140/80 V R17 Single disc brake 285 mm / 11.22 i diameter. Brembo 4 piston caliper Simplex drum brake 200 mm / 7.87 in diameter |
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