Information kindly supplied by P.Hawksley

www.bmbikes.co.uk

Start of Production

1985

Click to view available literature

End of Production

1990

Numbers Produced

9,566

Price

12,890 DM

Engine


Motor Type

Four-stroke horizontal three cylinder in-line engine, liquid cooled

Bore x Stroke

67 x 70 mm (2.63 x 2.75 in)

Displacement

740 cc

Max Power

75 hp (55 KW) at 8,500 rpm

Max Torque

68 Nm / 50 ft lb at 6,750 rpm

Compression Ratio

11.0 : 1

Valves Per Cylinder

2

Valve Control

DOHC, using drive chain and cup tappets

Carburation System

electronic injection, Bosch LE-Jetronic

Engine Lubricating System

Wet sump



Power Transmission


Clutch

Dry single plate

Number of Gears

5

Gear Selection

Dog type gearbox (ratchet foot lever)

Gearbox Ratios

4.50 / 2.96 / 2.30 / 1.88 / 1.67 : 1

Rear Wheel Ratio

1 : 3.20 or 1 : 3.36

Bevel/Crownwheel

10 / 32 teeth or 11 / 37 teeth



Electrical System


Ignition System

Electronic ignition, Bosch LE-Jetronic

Alternator

12 V 460 W

Starter

0.7 Kw

Spark Plugs

Bosch X 5 DC / Beru 12-5 DU






Chassis


Type of Frame

Tubular space frame, engine serving as load bearing component

Front wheel suspension

Telescopic fork with hydraulic shock absorber

Rear wheel suspension

BMW Monolever swinging arm

Spring Travel Front/Rear

185 / 114 mm (7.28 x 4.48 in)

Wheel Rims, Front

MTH 2.50 x 18 E

Wheel Rims, Rear

MTH 2.75 x 18 E

Tyres, Front

100/90 x 18 56 H

Tyres, Rear

130/90 x 18 56 H

Brakes, Front

Dual disc brake 285 mm / 11.22 in diameter. Brembo 2 piston caliper

Brakes, Rear

Mechanically actuated drum brake 200 mm / 7.87 in diameter




Dimensions/Weights


Length x Width x Height

2220 x 900 x 1300 mm (87.40 x 35.43 x 51.18 in)

Wheel Base

1516 mm / 59.68 in

Fuel Tank Capacity

21 litres / 4.61 gal / 5.54 gal US

Unladen Weight with Full Tank

227 Kg / 500 lb

Max. Permissible Weight

450 Kg / 991 lb

Ground Clearance

175 mm / 6.88 in

Seat Height (Unladen)

810 mm (31.90 inches) or 760 mm (29.90 inches) for low seat model

Fuel Consumption (at constant 90 Kph)

4.2 litres 100 Km / 67 mpg / 56 mpg US

Top Speed

200 Kph / 124 mph

Acceleration 0 - 100 Kph / 62 mph

4.6 seconds