Raleigh 753 seat tube diameter
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rusty bodie
Senior Retro Guru
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hi,
i am certain that your frame is not a raleigh i'm afraid. the so called "shot in" or "fastback" seat stays that raleigh offered are different in style to yours - all the raleighs i ever saw always had the seat binder bolt pass straight through the top of the stays in an "all in one" arrangement. the top of your stays, as neatly designed and made as it is has the bolt entirely separate from the tops of the seat stays.
anything from the raleigh lightweight division had the code SB ---- stamped on the bottom bracket shell and raleigh also used plastic cable guide riveted on the underside of the bottom bracket, not the brazed type yours feature.
nevertheless, whatever it is yours is a lovely old frame indeed!
ps is this a british frame? those stays look awfully like bob jackson's fabulous handywork!
rusty
i am certain that your frame is not a raleigh i'm afraid. the so called "shot in" or "fastback" seat stays that raleigh offered are different in style to yours - all the raleighs i ever saw always had the seat binder bolt pass straight through the top of the stays in an "all in one" arrangement. the top of your stays, as neatly designed and made as it is has the bolt entirely separate from the tops of the seat stays.
anything from the raleigh lightweight division had the code SB ---- stamped on the bottom bracket shell and raleigh also used plastic cable guide riveted on the underside of the bottom bracket, not the brazed type yours feature.
nevertheless, whatever it is yours is a lovely old frame indeed!
ps is this a british frame? those stays look awfully like bob jackson's fabulous handywork!
rusty
one-eyed_jim
Old School Grand Master
Raleigh Professionals of the early-mid seventies used a similar seatstay arrangement, like this tasty example currently on eBay:rusty bodie":152ibkdu said:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 0423819830
However, the stays on the Raleigh are attached to an extension of the seat lug, rather than meeting the seat tube directly below the lug as on ke35's frame.
I agree that it's a nice frame, and not a Raleigh.
I think vertical dropouts would have been quite unusual on a British frame of that age.
ke35:
Is the bottom bracket BSC threaded?
Is that a fine crack I can see running from the bottom of the seat slot around the lower edge of the seat lug?
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ultimobici
Dirt Disciple
I'd rethink the rims if you plan on riding the Ronde. Recorde du Monde rims are somewhat delicate for Flanders. GP4 or SSC rims are far better suited to pave.garethrl":tr0ih5el said:
One reason I considered it being a Raleigh is the lugs with the triangle cut out - I have seen these on Raleighs, and Concorde / Ciocc. So far no one has identified them.
I have an SB frame also and I hope to get this one built up soon so I can compare the 2.
This frame was bought in the UK, but that doesn't mean too much.
Is the bottom bracket BSC threaded?
I struggled with this and a British thread went in and is tight, but was loose to begin with.
The camera is a strange thing. It highlights some areas better than seeing it naturally - the serial number is a good example
Is that a fine crack I can see running from the bottom of the seat slot around the lower edge of the seat lug? I have looked closely and I don't think so but really the paint needs to come off to see it properly.
I have an SB frame also and I hope to get this one built up soon so I can compare the 2.
This frame was bought in the UK, but that doesn't mean too much.
Is the bottom bracket BSC threaded?
I struggled with this and a British thread went in and is tight, but was loose to begin with.
The camera is a strange thing. It highlights some areas better than seeing it naturally - the serial number is a good example
Is that a fine crack I can see running from the bottom of the seat slot around the lower edge of the seat lug? I have looked closely and I don't think so but really the paint needs to come off to see it properly.
garethrl
Senior Retro Guru
It was measured with a Vernier caliper - sorry if that wasn't clear. The pointt was that the seat tube measured 27.0mm at the cluster, but only to a depth of 2cm owing to the length of the caliper jaws. I could insert the 27.0mm post to about the bottom of the cluster lug, but no further.
That led me to speculate that the seat tube might actually be a 28.6mm one that had been splayed out a bit by a previous owner. I bought a 26.8mm post to see, and it inserted just fine, pretty snug, and tightened up just so. So it looks as though it is indeed the smaller size.
I also managed to get the fixed cup out last week, so now I have to make time to get going on the paint. I'm rapidly running out of excuses ...
That led me to speculate that the seat tube might actually be a 28.6mm one that had been splayed out a bit by a previous owner. I bought a 26.8mm post to see, and it inserted just fine, pretty snug, and tightened up just so. So it looks as though it is indeed the smaller size.
I also managed to get the fixed cup out last week, so now I have to make time to get going on the paint. I'm rapidly running out of excuses ...
bikemeister2000":3s5m82yn said:
I would be inclined to get a vernier caliper and measure the internal diameter, simples
Here's one for under a fiver.
http://www.mandp.co.uk/productinfo/5296 ... ue-Vernier
Once you have done that you will know what size seat post you require.
garethrl
Senior Retro Guru
I agree with you on the rims, and will probably look for a second pair that are a bit more robust for general riding. Something like GP4s or SSCs, as you suggest. In fact, I'm not convinced that this will be the right bike for the retro Ronde once finished, I'm thinking more in terms of the Columbus SL Merckx by now ...
The Record du Monde rims arrived from DK late last week, 2x330g of super-shiny silver NOS goodness. They'll look quite splendid once built onto the large flange Record hubs with DT Swiss pokes. I had originally planned to leave the Arc-en-Ciel on the rear, but the finish has dulled with tim and it would be a shame to 'mis-match' it with the NOS front. I'll change them both and keep the A-e-C as a spare/tub stretcher.
Cheers, Gareth.
The Record du Monde rims arrived from DK late last week, 2x330g of super-shiny silver NOS goodness. They'll look quite splendid once built onto the large flange Record hubs with DT Swiss pokes. I had originally planned to leave the Arc-en-Ciel on the rear, but the finish has dulled with tim and it would be a shame to 'mis-match' it with the NOS front. I'll change them both and keep the A-e-C as a spare/tub stretcher.
Cheers, Gareth.
ultimobici":3t6lifx2 said:
rusty bodie
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yup or a nice pair of campagnolo record strada or record pave rims would do the business or indeed the ambrosio metamorphosis rims - had mine for some time now, just got them rebuilt and still perfectly round in spite of my near 14 stone ass on top of them!!
:shock:
:shock:
