1964 BMW R28 Military
| Engine Engine type Bore x Stroke Displacement Valves Compression ratio Max Power Max Torque Fuel system Transmission Final drive Clutch Ignition type Starting system Lubrication Exhaust Spark plug Battery Gear ratios | Air-cooled, 4-stroke, single cylinder vertical 68.0 x 68.0 mm (2.67 x 2.67 inches) 245 cc OHV 8.2:1 18 HP @ 7400 rpm Rubber mounted slide type carburettor with long inlet tract and waterproof enclosure. Oil damped air filter 4-speed, foot lever Cardan shaft fully enclosed in oil bath swinging arm with heavy duty rubber sealing. Maintenance free spiral bevel gears with constant tooth angle Single plate dry clutch with diapragm spring Battery ignition Kick starter Lubrication by gear pump in sump 6 volt 12 amp hour |
| Dimensions Frame type Castor Overall length Overall width Overall height Wheelbase Seat height Ground clearance Dry weight Fuel capacity Colors Suspension (front) Suspension (rear) Tyre (front) Tyre (rear) Brake (front) Brake (rear) | Closed, electric welded double loop frame of steel, particularly suitable for high speed use. Taper roller steering head bearings 2080 mm 790 mm 1010 mm 1320 mm 785 mm 185 mm (7.3 inches) 150 kg 15 litres Telescopic forks (developed from BMW R25/3) with hydraulic damping and travel of 126 mm Rear swinging arm with two maintenance free taper roller bearings and hydraulic dampers. Travel of 105 mm. Short wheelbase and high ground clearance 3.25 / 3.50 x 18 Cross Country 3.25 / 3.50 x 18 Cross Country Drum brake 160 mm x 35 mm/6.29 inches diameter, full width Drum brake 160 mm x 35 mm/6.29 inches diameter, full width |
Image: http://www.bmbikes.co.uk