Phil Hawksley's BM Bikes

'The Ultimate BMW Information Site'

   Contact Me

Find Information, Specifications and Images of Your Favourite BMW Motorcycle

Custom Search

About This Site
BMW Press Packs
BMW Model Spec
Engine/Chassis Nos
BMW Photos
Colour Schemes
Annual Colours
BMW Paint Codes
BMW Pin Stripes
BMW Colour Charts
BMW Price Guides
BMW Recall Notices
Mechanical Photos
The Black Museum
BMW Distributors
Clubs Worldwide
BMW Links
Your Help Required
Cookies & Copyright

BMW R65RT Specifications


Back To Index

As far as I'm aware, the R65RT was never produced as an official model although fairing kits were available and I believe it was available to order - certainly BMW do not list it as a production model. Some Police Forces did use this model and I'm informed that a limited number were sold by BMW France. Specifications, listed here are on the assumption that spec would have been the same as an R65 - ? at the end of a column indicates spec that would have been different. If anyone has a Spec. sheet or brochures for this model, a copy would be appreciated.

BMW R65RT French Brochure

Thanks to Didier Parent for both the brochure and the translation

The Brochure reads as follows:

BMW Official dealers propose the R65 & R65LS with fairing. (Limited edition)

The famous BMW integral fairing designed in a wind tunnel increase the R65 personality by highlighting its aesthetic, efficiency and its sense of comfort and economy. To allow new a devotee to discover the appeal of equipment usually dedicated to top level model (R100RT), your official BMW dealer propose that you discover a faired edition of the R65 & R65LS*

Recommended price at the date of Dec 01 1982 is 29900 Francs (including taxes)

*the equipment is installed by your official dealer

Start of Production


BMW R65RT Photo

Click to View

End of Production


Numbers Produced

Included in R65


???? DM



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)


649.6 cc

Max Power

45 hp (33 Kw) at 7,250 rpm. From 1981 50 hp 37 Kw at 7,250

Max Torque

50 Nm / 36 ft lb at 5,500 rpm. From 1981 model: 52.3 Nm / 38 ft lb at 6500 rpm

Compression Ratio

9.2 : 1

Valves Per Cylinder


Valve Control

OHV, using push rod and rocker arm

Carburation System

2 constant depression carburettors, Bing 64/32/2030 -  64/32/2040 or 64/32/307 - 64/32/308

Engine Lubricating System

Wet sump

Power Transmission



Dry single plate, with diaphragm spring

Number of Gears


Gear Selection

Dog type gearbox (ratchet foot lever)

Gearbox Ratios

4.4 / 2.86 / 2.07 / 1.67 / 1.50 : 1

Rear Wheel Ratio

1: 3.44


9 / 31 teeth

Electrical System


Ignition System

Battery ignition. From 1981 model: Contact free electronic ignition


Bosch 280 W


Bosch 0.7 hp

Spark Plugs

Bosch W 5 D / Beru 14-5D / Champion N 6 Y



Type of Frame

Double loop tubular frame with bolt on rear section

Front wheel suspension

Telescopic fork with hydraulic shock absorber

Rear wheel suspension

Long swinging arm with adjustable strut

Spring Travel Front/Rear

175 / 110 mm (6.88 / 4.33 in)

Wheel Rims, Front

1.85 B 18

Wheel Rims, Rear

2.50 B 18

Tyres, Front

3.25 S 18

Tyres, Rear

4.00 S 18

Brakes, Front

Single disc brake 260 mm / 10.23 in diameter. Twin disc on later models. ATE 2 piston caliper to 1979. 1979 on models Brembo 2 piston caliper

Brakes, Rear

Simplex drum brake 200 mm / 7.87 in diameter



Length x Width x Height


Wheel Base

1390 mm / 54.72 in to 1980. 1400 mm / 55.11 in

Fuel Tank Capacity

22 litres / 4.83 gal / 5.81 gal US

Unladen Weight with Full Tank

205 Kg / 451 lb  ??

Max. Permissible Weight

398 Kg / 876 lb

Ground Clearance

130 mm / 5.11 in

Seat Height (Unladen) Up to 1980

770 mm (30.3 inches)

Seat Height (Unladen) 1981 On

810 mm (31.9 inches)

Fuel Consumption

4.6 litres 100 Km (at constant 90 Kph) / 61 mpg / 51 mpg US  ??

Top Speed

175 Kph / 108 mph  ??

Acceleration 0 - 100 Kph / 62 mph

5.9 seconds (1981 model on: 5.8 seconds) ??



Member of BM Riders Club, The BMW Club, BMF, BMWMOA, The Airheads and The Poverty Riders

Check out my other sites at: &