I do know that ' Douglas Club post war spares ' has a very good pair of matched std pistons and Barrels . They look as new.
The barrels are the stationary ones with the extra fin at the base . Motorcycle ones have one less fin. This would cut out reboring cylinders ?
    Jonathan 

This 1927 Douglas EW 350cc has been completely restored to a very high standard and is a multiple show winner. It has done 620 miles since complete restoration, as seen on The Watford Speedometer, Dunlop tyres, P&H acetylene lighting set, Lucas horn, sports type carrier with seat pad included, rear folding footrests for pillion, all paint stove enamel, nickel plating, wheels are rebuilt with new rims and spokes, brakes and clutch relined, engine and gearbox rebuilt Saddle & toolboxes fitted with new leather. Etc. Price £9500 ovno. If interested please email me and I can send more photographs.V5 log book. This machine is located in Fife Scotland. Advancing age forces sale. My email address is john_davidson515@yahoo.co.uk

Quote from: DSIM on 20 Jun 2025 at 10:59 Hi
I have a pair of domed  NOS  T35 pistons +60 complete with all rings fitted and gapped. They are unused. Just getting rings for your reworked pistons will stretch your budget, reboring to +60 would be an easy option. A reasonable offer plus postage and they are yours.

Best regards 

Hi there
Thanks much for the offer. As it happens, the machining has been done, and the rings had already been ordered. 

Your pistons might yet see a role, depending on what we find inside the FT35 that has been in a Scottish basement for 80+ years, and also, I have to ask the colleagues if they want to do anything with it. That would not be a trivial project!

I have not yet figured out how to send PM message on this forum 
Graham

2 x Plus for Sale


Collection ONLY - Located in West Berkshire.  If you are interested please PM me for more details.
Regards, Simon










Video of the bikes running from a few weeks ago

I would like to sell my Douglass for health reasons. It is an E31 (T6). It has a 4-speed gearbox and drives well. Location is Germany and is registered on 07 number. The original Norwegian letter is also included. Please contact me if you are interested. 
Regards
     Manfred 

I would recommend searching for a later 3-pin type clutch from a F/31-G/31 or '32 or the OW/OW1 models of 1934-35. Besides having three drive pins for the pressure plate verses two, you can separate the clutch disk from the backing plate. On the SW5 clutch (2-pin) type you have to un-rivet the sprocket to separate, as the hole in the backing plate is too small to allow it to pass through.

I do have drawings for the later 3-pin type if you decide to go the route of manufacturing a new flywheel clutch. I also have an example of the 2-pin type for my SW5, but it has not been drawn up.

-Doug

Hi has anyone got a flywheel clutch assembly for an SW5 they are willing to part with. 

I have a complete bike that will need recommissioning if you are still looking. Open to offers

Hi
I have a pair of domed  NOS  T35 pistons +60 complete with all rings fitted and gapped. They are unused. Just getting rings for your reworked pistons will stretch your budget, reboring to +60 would be an easy option. A reasonable offer plus postage and they are yours.

Best regards  

Hi, what is the approx date of the next New Conrod please?