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BMW R65GS Specifications

 

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Start of Production

1987

BMW R65GS

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End of Production

1992

Numbers Produced

1,727

Price

9,200 DM

Engine

 

Motor Type

Four-stroke two cylinder horizontally opposed "Boxer" engine, air cooled

Bore x Stroke

82 x 61.5 mm (3.22 x 2.42 in)

Displacement

649.6 cc

Max Power

27 hp (20 KW) at 5,500 rpm

35 KW engines were also available at some time

It is possible that some 50bhp machine were also produced - see below:

As you mention only in the 27 HP edition, I hold one of thes 65s, with original papers from the Bmw claiming it to be 50 Hp, i know that probably 100 pcs. vere made with this engine, mostly used be Danish authorities such as Millitary Police, as you also mention 1727 of the 65 GS, were made, well, Ive heard 1721 to be exact, but also heard another version saying a little more than 1300 were produced, this figure probably excludes the app. 400 pcs. delived all in all for Danish authorities,  Army, Firebrigades, Homeguard, Rescue, etc. Best regards, Niels Henrik Nielsen

Max Torque

43 Nm 31 ft lb at 3,500 rpm

Compression Ratio

8.4 : 1

Valves Per Cylinder

2

Valve Control

OHV, using push rod and rocker arm

Carburation System

2 constant depression carburettors, Bing  64/26/317 -  64/26/318

Engine Lubricating System

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)

Gearbox Ratios

4.4 / 2.86 / 2.07 / 1.67 / 1.50

Rear Wheel Ratio

1 : 3.44

Bevel/Crownwheel

9 / 31

Electrical System

 

Ignition System

Contact free electronic ignition (Bosch)

Alternator

Bosch 280 W

Starter

Bosch 0.7 Kw

Spark Plugs

Bosch W 7 DC / Beru 14-7 DU/ Champion N9YC

Chassis

 

Type of Frame

Double loop tubular frame with bolt on rear section

Front wheel suspension

Telescopic fork with hydraulic shock absorber

Rear wheel suspension

BMW Monolever swinging arm

Spring Travel Front/Rear

200 / 170 mm (7.87 x 6.69 in)

Wheel Rims, Front

1.85 B 21

Wheel Rims, Rear

2.50 B 18

Tyres, Front

3.00 x 21 48 R

Tyres, Rear

4.00 x 18 64 R

Brakes, Front

Single disc brake 260 mm  / 10.23 in diameter. Brembo 2 piston caliper

Brakes, Rear

Simplex drum brake 200 mm / 7.87 in diameter

Dimensions/Weights

 

Length x Width x Height

2230 x 820 x 1150 mm (87.79 x 32.28 x 45.27 in)

Wheel Base

1465 mm / 57.67 in

Fuel Tank Capacity

19.5 litres / 4.28 gal / 5.15 gal US

Unladen Weight with Full Tank

198 Kg / 436 lb

Max. Permissible Weight

398 Kg / 876 lb

Ground Clearance

218 mm / 8.58 in

Seat Height (Unladen)

860 mm (33.9 inches)

Fuel Consumption

5.0 litres 100 Km (at constant 90 Kph) / 56 mpg / 47 mpg US

Top Speed

146 Kph / 90 mph

Acceleration 0 - 100 Kph / 62 mph

9.4 seconds

 

 

 

 

 

 

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