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R25

R 25
. Data sheet
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Production
Begin of the Production 1950
End of the Production 1951
Numbers Produced 23400
Price 1.750,- DM
Engine
Internal Designation 224/2
Motor Type four-stroke single-cylinder vertical
Bore x Stroke 68 x 68 mm
Displacement 247 ccm
Max Power 12 hp at 5600 rpm
Compression Ratio 6.5 : 1
Valves ohv
Carburetion System 1 x Bing type 1/22/28
Engine Lubricating System forced-feed lubrication
Oil Pump gear pump
Power transmission
Clutch single-plate, dry
Number of Gears 4
Shifting foot switching (+ auxiliary manual switch on gearing block)
Gearbox Ratios 6.1 / 3.0 / 2.04 / 1.54
Rear Wheel Ratio 4.5 : 1 (with sidecar 5.14 : 1)
Bevel / Crownwheel 6 / 27 teeth (with sidecar 7:36)
Electrical system
Ignition System battery ignition
Generator Noris 6 V/45-60 W
Spark Plugs Bosch W 240 T1 or Bosch W 240 T1 A
Chassis
Designation 225/1
Frame closed steel twin-loop frame, bolted
Front Wheel Suspension telescopic fork
Rear Wheel Suspension pushrod suspension
Wheel Rims 3 x 19 deep-bed
Tyres front 3.25 x 19
Tyres rear 3.25 x 19
Brakes front drum brake Ø 160 mm
Brakes rear drum brake Ø 160 mm
Dimensions / Weights
Length x Width x Height 2073 x 750 x 710 mm
Fuel Tank Capacity 12 l
Unladen Weight, Full Tank 140 kg
PermittedWeight Limit 290 kg (with sidecar 365 kg )
Clearance 108 mm
Fuel Consumption approx. 3,5 l/100 km
Oil Consumption approx. 1 l/1000 km
Top Speed 95 kph (with original sidecar 80 kph)
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