Holdsworth

[Punkawallah]

I have a Holdsworth frame with rust damage on the chain stays at the Bottom bracket. Can anyone tell me what the dimensions of the stays should be at that point? Considering taking it back to metal and re-painting, but will scrap if there is too much steel gone.

 

[PedalPedantic]

You're looking for the thickness of the chain-stay as it enters the b.b shell? I'm going to take a quick guess at about 1.2mm. Don't worry about it. Just strip the frame, sand it and use some type of filler if the pits bother you.

 

[Punkawallah]

You're looking for the thickness of the chain-stay as it enters the b.b shell? I'm going to take a quick guess at about 1.2mm. Don't worry about it. Just strip the frame, sand it and use some type of filler if the pits bother you.

Hi, my thanks for the response. It was actually the thickness of the tube (vertical & horizontal as it’s oval) I was after, rather than the tube walls?. OnceI get to bare metal I’d like to make a comparison with what should be there and what’s left :-)

 

[midlife]

It depends where the builder cut the pre-shaped tube from Reynolds. Depends on the tube and the size of the frame

If it’s 531 you are pretty safe as for some reason it was thick in that area

If it’s 753 you are stuffed….

 

[Punkawallah]

It depends where the builder cut the pre-shaped tube from Reynolds. Depends on the tube and the size of the frame

If it’s 531 you are pretty safe as for some reason it was thick in that area

If it’s 753 you are stuffed….

Good to know.
It’s looks an older model (in a fetching leaf green metallic) so I suspect from the heft it’s 531.

 

[midlife]

If it’s 531 then I’d check it’s not perforated and carry on

 

[Punkawallah]

If it’s 531 then I’d check it’s not perforated and carry on

My thanks for that.

 

[pippy]

Hi, my thanks for the response. It was actually the thickness of the tube (vertical & horizontal as it’s oval) I was after, rather than the tube walls?. OnceI get to bare metal I’d like to make a comparison with what should be there and what’s left :-)

Not sure if this will be of any help but having just checked the stays of my 1976 Holdsworth they measure 22mm x 22mm as they feed into the B/Bracket. Out of curiosity I also measured the stays on my similarly-aged Shorter and they are exactly the same.

Just after the stays leave the BB they become oval in section but not where they abut the bracket itself.

Philip.

 

[Punkawallah]

Not sure if this will be of any help but having just checked the stays of my 1976 Holdsworth they measure 22mm x 22mm as they feed into the B/Bracket. Out of curiosity I also measured the stays on my similarly-aged Shorter and they are exactly the same.

Just after the stays leave the BB they become oval in section but not where they abut the bracket itself.

Philip.

You are a gentleman and a scholar, Sir! My thanks for your efforts!