BMW-R12

BMW-R12 is the most popular type used by the Wehrmacht, although the R35, R71 and R75 were pretty popular and have appeared in photographs of that era.

Year of production: 1935 - 1941

The number of overall production: 20,000 pieces for the civilian, and 10,000 pieces for the military. Total is 36,008 pieces
Engine: sidevalve 18hp/3400rpm or 20hp/4000rpm, 2-cyl 4-stroke aircooled, 745cc motor boxer SV
Bore / Stroke: 78/78 mm
Compression ratio: 5.2: 1
Dimensions (solo): length: 2100mm

width: 900mm
height: 940mm

saddle height: 70cm
Dimensions (gespann, with sidecar): length: 2520mm

width: 1615mm

height: 1000mm
The distance between the wheels (wheelbase): 1380mm
Rear track (gespann, tandem version): 1070mm
Road clearance (solo): 120mm
Road clearance (tandem): 245mm
Carburetter: Amal 6 / 406 SP and 6 / 407 SP (based on other sources)
Starter: 45/70 Watts
Battery: 6 Volt 7 Ah
Clutch: dry single plate
Gearbox: 4-speed
Ratios: I - 3.18; II - 2.06; III - 1.42, IV - 1.09 axle
Transmission ratios: solo - 4.07 (14: 57),
gespann - 4.75 (12: 57),
Heer (military) - 5.18 (11: 57)
Pressed steel frame
Telescope front fork
Rear wheel without a fire control devices
Footbrake: connected with the lever to the rear wheels
Hand brake: connected by cable to the front wheels
Turning radius: 2.25 m (left), 1.8 m (right)
Weight (solo): 188 kg
Maximum speed: 125 km / hour (civilian);
100 km / h (Wehrmacht solo);
85 km / h (Wehrmacht gespann)
Wheels: 3.50 or 4.00 x19 x19 inches
Wheel pressure, atm.: Front - 1.4 (with sidecar - 1,4)

rear - 1,5 (with sidecar - 1.9, for three - 2.3)
Fuel tank capacity: 14 L
Fuel consumption: 4.4 liter/100km (civil)

5.5 liter/100km (Wehrmacht solo)

6.5 liter/100km (Wehrmacht gespann).
Engine oil, gearbox and axle - SAE 40 (summer), changed every 2000 km, while the oil filter should be replaced every 12,000 km.
The ability of water to wade to a depth of 250mm
Profile BMW R12 motorcycles made ​​in 1938 earmarked for the Army (Heer).

The German soldiers photographed the BMW R12 motorcycle in the middle of the ruins. Storage cans of gas masks hanging on their chests. Apparently they just had a tiring day!

Still from people who are similar to those above. Take pictures for a moment in the middle of a long journey. Rain jackets they have been filled with dust, nor were the face and the BMW R12 motorcycle tandem of them!

Rows of riders BMW R12. Usually forces troops on motorcycles are reconnaissance (reconnaissance), which served as the team's pioneers in the convoy. motorcycle that is light, small and high-speed allows them to be car back and forth from front to force the parent to report the situation around

Two soldiers with the style Wehrmacht BMW R12 motorcycle tandem them. It seems that this bike is still brand new, visible from the front tires are still smooth and not bald!

Automaker BMW first introduced the R12 motorcycle series in 1935, and is the world's first motorcycle equipped by telescopic hydraulic dampers are three-pronged. With a 745-cc engine and weighs 408 lbs, measuring 20 BMW R12 horsepower at 3400rpm and can reach a maximum speed of 75 miles / hour.