1951 BMW R25/2
| 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) 247 cc OHV 6.75:1 12 HP @ 5600 rpm 1 x Bing type 1/22/44 or SAWE type K 22 F 4-speed, foot switching (+ auxiliary manual switch on gearing block) Shaft Single plate dry clutch Battery ignition Kick starter Forced Feed Lubrication Bosch W 240 T1 |
| 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 steel twin loop frame, welded 2020 mm (79.52 inches) 790 mm (31.10 inches) 730 mm (28.74 inches) 1330 mm (52.36 inches) 828 mm (32.6 inches) 185 mm (7.3 inches) 142 kg 12 litres Telescopic fork Pushrod suspension 3.25 R19 3.25 R19 Drum brake 160 mm / 6.29 inches diameter Drum brake 160 mm / 6.29 inches diameter |
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