These are the known mechanical and performance specifications for your 1940 BMW R71.
Basic Specs
Engine
Displacement746.00 ccm (45.52 cubic inches)
Type
DetailsTwo cylinder boxer, four-stroke
Max RPM
Compression5.5:1
Bore/Stroke78.0 x 78.0 mm (3.1 x 3.1 inches)
Valves/Cylinder
FuelingCarburettor. Graetzin G24
Ignition
Exhaust
LubricationWet sump
CoolingAir
Drivetrain
Gearbox4-speed
Final DriveShaft drive (cardan)
ClutchDry-single plate-cable operated
Driveline
Performance
Horespower22.03 HP (16.1 kW)
Torque
Top Speed125.0 km/h (77.7 mph)
Fuel Economy & Polution
Fuel Consumption4.50 litres/100 km (22.2 km/l or 52.27 mpg)
Fuel Capacity14.00 litres (3.70 gallons)
Emissions104.4 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame Type
Rake
Trail
Front SuspensionCartridge
Front Travel
Rear SuspensionTwin shock-swingarm
Rear Travel
SeatSingle seat
Seat Height
Alt. Seat Height
Total Height960 mm (37.8 inches)
Total Length2,130 mm (83.9 inches)
Total Width815 mm (32.1 inches)
Ground Clearance
Wheelbase1,400 mm (55.1 inches)
Dry Weight
Wet Weight187.0 kg (412.3 pounds)
Wheels & Brakes
Front Tire/Tyre3.5-19
Rear Tire/Tyre3.5-19
Front BrakesExpanding brake (drum brake). Single
Front Brake Diameter200 mm (7.9 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter200 mm (7.9 inches)
WheelsSpoked
Comments