BMW R69

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Bmw-r69-1955-1959-1.jpg
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)
Horsepower 41.17 HP (30.7 KW) @ 7000RPM
Ignition 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)
Length 84.13 inches (2137 mm)
Width 28.43 inches (722 mm)
Height 39.17 inches (995 mm)
Weight 199.0 kg (wet)
Fuel Capacity 4.49 Gallon (17.00 Liters)
Fuel Consumption 5.30 liters/100 km (18.9 km/l or 44.38 mpg)
Manuals Service Manual


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.

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

Engine[edit]

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[edit]

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

Chassis[edit]

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.

1961 R69[edit]

1955 - 1959 BMW R 69[edit]

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.


In Media[edit]




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