These are the known mechanical and performance specifications for your 1954 BMW R51 3.
Basic Specs
Engine
Displacement494.00 ccm (30.14 cubic inches)
Type
DetailsTwo cylinder boxer, four-stroke
Max RPM
Compression6.3:1
Bore/Stroke68.0 x 68.0 mm (2.7 x 2.7 inches)
Valves/Cylinder
FuelingCarburettor. 22mm
Ignition
Exhaust
LubricationWet sump
CoolingAir
Drivetrain
Gearbox4-speed
Final DriveShaft drive (cardan)
ClutchDry-single plate-cable operated
Driveline
Performance
Horespower24.07 HP (17.6 kW)
Torque
Top Speed135.0 km/h (83.9 mph)
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity17.00 litres (4.49 gallons)
Emissions
Chassis
Frame TypeSteel single cradle
Rake
Trail
Front SuspensionCartridge
Front Travel
Rear SuspensionTelscopic
Rear Travel
Seat
Seat Height
Alt. Seat Height
Total Height985 mm (38.8 inches)
Total Length2,130 mm (83.9 inches)
Total Width790 mm (31.1 inches)
Ground Clearance
Wheelbase1,400 mm (55.1 inches)
Dry Weight
Wet Weight190.0 kg (418.9 pounds)
Wheels & Brakes
Front Tire/Tyre3.50-19.00
Rear Tire/Tyre3.50-19.00
Front BrakesExpanding brake (drum brake)
Front Brake Diameter200 mm (7.9 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter200 mm (7.9 inches)
Wheels
Comments