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1938 BMW R51 Specs

General ─░nformation

Model BMW R51
Year 1938
Category Allround

Engine and transmission

Displacement 494.00 ccm (30.14 cubic inches)
Power 24.07 HP (17.6 kW)) @ 5600 RPM
Top speed 140.0 km/h (87.0 mph)
Compression 6.7:1
Bore x stroke 68.0 x 68.0 mm (2.7 x 2.7 inches)
Fuel system Carburettor. Amal
Fuel control Overhead Valves (OHV)
Ignition Battery
Lubrication system Wet sump
Cooling system Air
Gearbox 4-speed
Transmission type, final drive Shaft drive (cardan)
Fuel consumption 4.00 litres/100 km (25.0 km/l or 58.81 mpg)
Greenhouse gases 92.8 CO2 g/km. (CO2 - Carbon dioxide emission)

Chassis, suspension, brakes and wheels

Frame type Steel single cradle
Front suspension Cartridge
Rear suspension Twin shock-Swingarm
Frame 3.50-19.00
Front tyre 3.50-19.00
Rear tyre 3.50-19.00
Front brakes Expanding brake (drum brake)
Front brakes diamete 200 mm (7.9 inches)
Rear brakes Expanding brake (drum brake)
rear_brakes_diameter 200 mm (7.9 inches)
Seat Single seat

Physical measures and capacities

Weight incl. oil, gas, etc 182.0 kg (401.2 pounds)
Overall height 960 mm (37.8 inches)
Overall length 2,130 mm (83.9 inches)
Overall width 815 mm (32.1 inches)
Wheelbase 1,400 mm (55.1 inches)
Fuel capacity 14.00 litres (3.70 gallons)

Other specifications

Starter Kick
Carrying capacity 210kg
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