A group of over 400 like minded enthusiasts dedicated to the Rudge Whitworth Marque.

Technical information, modifications and restoration topics are discussed in vivid detail. Surplus and new spares are made available to site members and up to date technical, machine dating and component drawing information is available to download, most of which is not available elsewhere. This site has NO connections to the Rudge Enthusiasts Club (see Home, About this site).

Technical help from Rudge experts...

Sam E Radial is on hand to answer those nagging technical questions like "I have an aluminium chaincase outer with 4 screw holes and no projection for a dynamo -is it correct for my 1929 Ulster?

The 1929 Ulster was the first Rudge to have a 2 piece aluminium chaincase. Not a true oil bath, it was also the first to be mounted to the engine. The 1929 outer chaincase M2529 x 1 is distinguished by having 4 off 1/4" holes through which screws attach it to the inner. The 1930 outer chaincase, from the same casting pattern and listed as having the same part number, had the 2 forward holes enlarged to 5/16" where screws passed through it and the inner to attach to the engine crankcase.  If your cover has 4 off 1/4" holes, then it is correct for 1929.


(Taken from Rudge Remedies No 66 - The 1929 and 1930 Ulster chaincases - available free inside!)

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We are a friendly group of real enthusiasts and if you create an account it will allow you to access the Forum and technical sections of the site - free!!

It's easy and free, just create an account here. If you have difficulties registering contact the webmaster on This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Thinking of purchasing or just purchased a Rudge? Started overhauling the engine?

Perhaps I can help? - I offer a free critique service to nut & bolt level for your newly discovered or newly purchased machine.

I also operate a donation based tool loan service to help you overhaul your engine and gearbox and a free gearbox loan service to keep you on the road.

Contact the site owner anytime on rudging@btinternet.com for details.


Reference files, catalogues, factory handbooks, technical articles and much more to download.

Discussion Forum

Share news and technical advice with other group members.


High quality reference pictures of original components - is your bike original?