BMW R 80 R

BMW R 80 R Date 1992 - 1994

Number sold 3.593

Price 13.250,- DM

Engine

Type four-stroke, two-cylinder, horizontally-opposed "Boxer" engine, air-cooled
Bore/stroke 84,8 x 70,6 mm
Cubic capacity 797,5 cm3
Max power 50 PS (37kW) at 6500 rpm [34 (25) at 6000 or 27 (20) at 5500]
Max torque 61 Nm at 3750 rpm [50 Nm at 3750 or 45 Nm at 3500]
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 lubrication 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)
Gear ratios 4,4 / 2,86 / 2,07 / 1,67 / 1,50 :1
Rear wheel ratio 1 : 3,20
Bevel/crown wheel 10 : 32 teeth

Electrical system

Alternator Bosch 240 W
Ignition Contact-free electronic ignition (Bosch)
Starter Bosch 0,7 kW
Spark plugs W 7 DC / Beru 14 - 7 DU

Suspension

Type of frame double-loop tubular frame with bolt-on rear section
Front suspension telescopic fork with hydraulic shock absorber
Rear suspension BMW Paralever - swinging arm
Spring travel 135 / 135 mm
Rims front 2,50 - 18 MTH 2
Rims rear 2,50 - 17 MTH 2
Tyres front 110/80 - V18
Tyres rear 140/80 - V17
Brakes front single disc brake 285 mm
Brakes rear Simplex drum brake 200 mm

Dimensions and weights

Length x width x height 2210 x 1000 x 1190 mm
Wheel base 1495 mm
Ground clearance 200 mm
Tank capacity 24 l
Unladen weight, full tank 217 kg
Max permissible weight 420 kg
Fuel consumption 4,7 l / 100 km (at constant 90 km/h)
Acceleration 0 - 100 km/h 6,0 s [8,6 s bzw. 9,5 s]
Top speed 168 km/h [148 km/h bzw. 145 km/h]

Back to index