Actually upon further investigation your distant memory is correct, it's a press in oil port. The guy in the bike shop had told me that they normally had threads.
I got a reply from the American website above who quite bluntly refused to sell them to me.
Now I'll be really impressed if...
Thanks for the link although I'm still none the wiser for thread size.
Thanks for the offer bagpuss, what styles do you have?
I've attached a picture of what I'm guessing it should look like; but as this is purely a cosmetic feature for the bike, it would be nice to have a nice shiny flip...
I'm looking for an oil port cover for a 1940s Rudge Raleigh.
Does anyone sell these in the UK?
I found these in the US, but have no idea which thread size will fit.
http://www.mcmaster.com/#oil-ports/=kh4dib
Cheers
The wheelset was hand built on H Plus Son rims and have a slight V shape; they're based on Campag rims.
When you have a plan for a bike, then all of sudden and quickly you have to make decisions on the look. I wanted something modern with this build as my previous Rudge was an authentic 1930s...
Bought this 1947 (possibly older) Rudge Aero frame on ebay stripped of its bottom bracket and a cup jammed inside for good measure. Almost lost faith in this project, but decided within a week to assemble it and get it ready.
I resisted the urge to respray the frame, but I grew to love the...