Technical specifications
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| Model: |
K series 1925-31 |
| Years: |
1925-27 |
|
Engine:
|
Four stroke, single cylinder, OHC
|
|
Capacity:
|
348.4 cc / 21.3 cub in
|
|
Bore x Stroke:
|
74 x 81 mm
|
|
Compression Ratio:
|
6:1
|
|
Cooling System:
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Air cooled
|
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Lubrication:
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Dry sump
|
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Carburetor:
|
Amal
|
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Ignition:
|
Bobine
|
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Starting:
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Kick start
|
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Clutch:
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Wet, multi-plate
|
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Transmission:
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3 Speed
|
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Final Drive:
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Chain
|
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Frame:
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Open frame with load bearing motor to form part of the frame
|
|
Front Suspension:
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Webb fork with two friction dampers
|
|
Rear Suspension:
|
Spring loaded seat
|
|
Wheels:
|
Spoked
|
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Front Tyre:
|
3.00 x 19"
|
|
Rear Tyre:
|
3.00 x 19"
|
|
Dry Weight:
|
112.5 kg / 248 lbs
|
|
Maximum Speed:
|
Average racing speed: 106 km/h / 66 mph
|
|
Colours:
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Black with gold pin striping
|
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Source:
|
Wikipedia
|