BMW R69

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600 cc boxer twin, 42 DIN bhp, 220 kg (445 #) 4 speed aircooled shaft-drive 4.00x18 tires Earles fork leading link front suspension sidecar and road ratios available. Most expensive bike available at the time. This bike uses one of the following plugs, but they are not interchangeable:

  • Spark Plug: NGK B8HS 1/2" Reach
  • Spark Plug: NGK B8ES 3/4" Reach
BMW R69
Manufacturer BMW
Also called R69US, R69S, R 69
Production 1955 - 1969
Class Classic
Engine two cylinder boxer, four-stroke
Bore / Stroke 72.0mm x 73.0mm
Compression ratio 7.5:1
Top speed 109 mph (175 km/h)
Horse Power 41.17 HP (30.7 KW) @ 7000RPM
Ignition type magneto
Battery 9.5:1
Transmission Gear box: 4-speed

Final Drive: shaft drive (cardan)

Clutch: dry-single plate-cable operated
Suspension Front: cartridge
Rear: twin shock-swingarm
Brakes Front: expanding brake (drum brake). single
Rear: expanding brake (drum brake). simplex full hub
Front Tire 3.50 - S18
Rear Tire 3.5-18
Wheelbase 56.18 inches (1427 mm)
Dimensions L 84.13 inches (2137 mm)
W 28.43 inches (722 mm)
H 39.17 inches (995 mm)
Weight  (dry), 199.0 kg (wet)
Fuel capacity 4.49 Gallon (17.00 Liters)
Fuel consumption 5.30 litres/100 km (18.9 km/l or 44.38 mpg)
Manuals Service Manual
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The BMW R69US was a two cylinder boxer, four-stroke Classic motorcycle produced by BMW between 1955 and 1969. It could reach a top speed of 109 mph (175 km/h). Claimed horsepower was 41.17 HP (30.7 KW) @ 7000 RPM.

Engine

The engine was a air cooled two cylinder boxer, four-stroke. A 72.0mm bore x 73.0mm stroke result in a displacement of just 594.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv).

Drive

The bike has a 4-speed transmission. Power was moderated via the dry-single plate-cable operated.

Chassis

It came with a 3.50 - S18 front tire and a 3.5-18 rear tire. Stopping was achieved via expanding brake (drum brake). single in the front and a expanding brake (drum brake). simplex full hub in the rear. The front suspension was a cartridge while the rear was equipped with a twin shock-swingarm. The R69US was fitted with a 4.49 Gallon (17.00 Liters) fuel tank. The wheelbase was 56.18 inches (1427 mm) long.

1955 - 1959 BMW R 69

1955 - 1959 BMW R 69 1955 - 1959 BMW R 69

The 1955 BMW R 69 boasts standard fittings such as laced wheels, a dual exhaust with pea-shooter mufflers, a dual seat, a small tail-light, a large, round headlight, a center stand, plunger rear shocks, a telescopic front fork, a blacked-out, steel frame, a drum braking system in the front and in the rear and full fenders.

In the engine department, it boasts a maximum power output of 35 horsepower at 6800 rpm from its air-cooled, four-stroke, 594cc, boxer twin cylinder powerhouse paired to a four-speed manual transmission.


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