BMW R 90/6 SPECIFICATIONS, PRICE & IMAGES

Bike Features

Make Model:
BMW R 90/6

Year:
1973-76

Engine:
Four stroke,
two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder.

Capacity:
898 cc / 54.8 cu in.

Bore x Stroke:
90 x 70.6 mm

Cooling System:
Air cooled

Compression Ratio:

9.0:1

Lubrication:
Gear driven pump

Induction:
2 x Bing constant depression
carburetors

Ignition  :
Battery ignition

Spark Plug:
Bosch W 200 T 30 / Beru 200/14/3 A / Champion N7Y

Charging System:
12V 280W alternator

Starting:
Electric

Max Power :

44.1 kW /
60 hp @ 6500 rpm

Max Torque:
73 Nm / 7.44 kgf-m / 53 ft lb @ 5500 rpm

Clutch:
Dry single plate, with diaphragm spring

Transmission  :
5 Speed 

Final Drive:
Shaft

Gear Ratios:
1st 4.40 / 2nd 2.86 / 3rd 2.07 /
4th 1.67 / 5th 1.50:1

Rear Wheel Ratio:
1:3.09 or 1:3.2

Frame:

Double loop tubular frame
with bolt on rear section

Front Suspension:

Telescopic hydraulic forks.

Front Wheel Travel:
208 mm / 8.1 in

Rear Suspension:

Long swinging arm with adjustable strut.

Rear Wheel Travel:
125 mm / 4.9 in

Front Brakes:
Single ∅260mm disc, 1 piston caliper

Rear Brakes:
∅200mm Drum

Front Wheel:
1.85 – B19

Rear Wheel:
2.15 – B18

Front Tyre:
3.25 – H19

Rear Tyre:

4.00 – H18

Dimensions:
Length  
2180 mm / 85.82 in
Width     
740 mm / 29.13 in
Height   
1080 mm / 42.5 in

Wheelbase:
1465 mm / 57.67 in

Seat Height:

810 mm / 31.9 in

Wet Weight:
210 kg / 462 lbs

Fuel Capacity :
18 Liters
/ 4.75 US gal