Jubilee Featherbed

Anyone seen this before supposed to be for a jubilee, this seems to be the best idea; Something about a mini-Featherbed Jubilee actually rings a bell somehow. Was such a thing intended before redesign into the AMC bits and pieces frame?

Have you actually tried to fit a Jubilee into it ?

Would be better with a big unit Triumph motor in there!

Those slimmed in top tubes would make way for nicely splayed and down draughted inlet ports too...

Would be better with a big unit Triumph motor in there!
that was exactly my thoughts also, I researched a bit but couldnt find out what the frame is from, does it have any numbers?
I'd like one though

Why on earth would you want one apart from it looking pretty. In use it might handle like the proverbial comel.
It was NOT a Renold Tubes manufactured frame...not unless it was manufactured to a AMC / Norton drawing in which case the drawing would of been returned with the frame. The ex Renold person I know has no record of it. Anyway Renold would of Sif Bronze welded it and I hear the 16g(?) tube is arc welded. I have not had my hands on it to find out.... But it is very pretty.........

Road Featherbeds were arc welded.

Triton Thrasher said:

Road Featherbeds were arc welded.

Click to expand...

I'm not positive but seem to recall the road frames were 14g, and probably a bit easier to weld

Interesting point about the welding of thinner tube.
The makers of 531 hi-tensile tubing (for the manx) state that it cannot be electric welded though,
being prone to cracking in the vicinity of the joints if it is.

Road frames were 14g cold drawn seamless (CDS) tube electric arc welded. Manx frames were 16g Renold 531 tube and were Sif Bronze number 1 welded.

NOW you have the story right... !

And the 350 and 500 manx frames had different size tubings.

Reynolds had a LOT of experience with welding steel tubes together.
It is noted on their website someplace during WW2 that they welded +10,000 MILES of steel tubing into aircraft frames.
Aircrews tend to note when such things go wrong.
So the tubemakers insisting that bronze welding was required for 531 managanese moly tubing probably needs to be abided by.
Oxy welding produces MUCH lower temps (than electric), important not to disturb the crystalline structure in the actual steel.

The more modern chrome-moly type tubing IS suitable for electric welding.

But we diverge, muchly, for this frame ?