Technical specifications
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| Model: |
R 90/6 |
| Years: |
1973-76 |
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Engine:
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Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder.
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Capacity:
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898 cc / 54.8 cu in.
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Bore x Stroke:
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90 x 70.6 mm
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Cooling System:
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Air cooled
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Compression Ratio:
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9.0:1
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Lubrication:
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Gear driven pump
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Induction:
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2 x Bing constant depression carburetors
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Ignition:
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Battery ignition
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Spark Plug:
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Bosch W 200 T 30 / Beru 200/14/3 A / Champion N7Y
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Charging System:
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12V 280W alternator
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Starting:
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Electric
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Max Power:
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44.1 kW / 60 hp @ 6500 rpm
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Max Torque:
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73 Nm / 7.44 kgf-m / 53 ft lb @ 5500 rpm
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Clutch:
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Dry single plate, with diaphragm spring
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Transmission:
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5 Speed
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Final Drive:
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Shaft
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Gear Ratios:
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1st 4.40 / 2nd 2.86 / 3rd 2.07 / 4th 1.67 / 5th 1.50:1
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Rear Wheel Ratio:
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1:3.09 or 1:3.2
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Frame:
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Double loop tubular frame with bolt on rear section
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Front Suspension:
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Telescopic hydraulic forks.
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Front Wheel Travel:
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208 mm / 8.1 in
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Rear Suspension:
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Long swinging arm with adjustable strut.
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Rear Wheel Travel:
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125 mm / 4.9 in
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Front Brakes:
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Single ∅260mm disc, 1 piston caliper
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Rear Brakes:
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200mm Drum
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Front Wheel:
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1.85 - B19
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Rear Wheel:
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2.15 - B18
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Front Tyre:
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3.25 - H19
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Rear Tyre:
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4.00 - H18
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Dimensions:
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Length 2180 mm / 85.82 in Width 740 mm / 29.13 in Height 1080 mm / 42.5 in
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Wheelbase:
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1465 mm / 57.67 in
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Seat Height:
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810 mm / 31.9 in
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Wet Weight:
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210 kg / 462 lbs
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Fuel Capacity:
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18 Liters / 4.75 US gal
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