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Douglas 1913 Model P motorcycle

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Douglas 1915 3 Spd-Gearbox and Clutch

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2024-06-11, 20:02:05
Have you tried the new Drafts feature yet? I just lost a long message today and learned my lesson. It is a good idea to save a draft of any long post you are writing. You can then just keep writing and keep saving a draft, knowing you have a backup if there is a glitch. The draft is automatically deleted when you post the message.


2024-06-08, 18:30:04
For Sale
xman has two very nice 1950's machines available - a green 1950 mk4 and black 1951 mk5 - both in good condition and running well.


2024-06-07, 02:13:36


2024-06-03, 08:23:05
For Sale
Duncan has just listed his green and cream 1957 Dragonfly for sale with spares and documents.


2024-06-02, 08:34:05
Parts avalable
alistair still has parts available - barrels, carburettor, castings - see all listings.


2024-06-01, 18:33:27


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Mk 1 & Mk 3

Started by Dawn, 22 Sep 2011 at 12:24

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Hi All,

Just a question that I've always wondered,

What exactly are the differences between a Mark 1 & a Mark 3.  (not Mk 3 Sports just standard machines please).




Hi Dawn,
               From memory the main differences are:
     The engine on the Mk1 has different heads, barrels and pistons. The flywheel/clutch assembly only has 3 pins through the flywheel and also less rivets in the centre boss of the clutch plate.
     The gearbox has a slightly different shaped main casing and different selector mechanism.

     The mudguards and rear numberplate are peculiar to the Mk1.

     The Mk1 toolbox has flat sides whereas the Mk3 is slightly domed.

     The Mk1 headlight has a flat glass.
     The Mk1 had a straight pull twistgrip and carbs with covered bellmouths with vent holes around the sides.

     There may also be other detail differences.



Cheers Eddie.

Have some new members in the section with those models, so its nice to know the differences.