Paramount Stem Question
12-21-19, 11:07 AM
#2
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I have have a 1974 P15 that came to me with a GB short reach stem and GB rando bars which I really like, my question is whether I can source and install the correct cinelli 1A stem and still use the GB bars, or is the cinelli stem diameter specific? Thanks, Todd
12-21-19, 11:13 AM
#3
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...someone will doubtless correct me if I'm wrong, but all the Cinelli stem and bar combinations from that era I have here are 26.4. There's no good way to use the GB bar in one with the possible exception of shimming it. I don't like to shim bars because those are the setups that always end up giving me problems.
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12-21-19, 11:13 AM
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Cinelli stems with the oval logo on top nut or allen key bard fitting will almost always be for a 26.4 mm bar.
The later winged logo version can be either 26.4 or 26.0..
You need to verify but I think those bars are 25.4mm You will need to loosen the bolt, move the bars over 1/4" and measure the bar clamp area.
There are some 3ttt Record stems with factory 25.4 bar ports. Most of the time from Raleigh Pros.
The later winged logo version can be either 26.4 or 26.0..
You need to verify but I think those bars are 25.4mm You will need to loosen the bolt, move the bars over 1/4" and measure the bar clamp area.
There are some 3ttt Record stems with factory 25.4 bar ports. Most of the time from Raleigh Pros.
12-21-19, 11:22 AM
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When one gets back into the 1960's some Paramounts came through with Titan stem/bar sets. These also have a distinct clamp size: 27.0mm in this case.
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When one gets back into the 1960's some Paramounts came through with Titan stem/bar sets. These also have a distinct clamp size: 27.0mm in this case.
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Last edited by juvela; 12-21-19 at 12:34 PM. Reason: spelln'
12-21-19, 11:45 AM
#6
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That's what I thought I read somewhere, I think I will just end up sourcing a Schwinn "S" forged GB stem in the slightly longer length and leave it at that, like I said, I like the rando bend so I am stuck with that, will source the Schwinn Approved yellow dot brake levers with safety extensions at the same time I do the swap, Todd
12-21-19, 12:26 PM
#7
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I am remembering this style of GB stem being found in 3-1/2" and 4-1/4" with nothing in between (that's 89mm or 108mm).
Hopefully I am wrong. There are also the "S"-branded ones that seem to be about 10cm and found only on Schwinns of course.
89mm and 108mm/110mm make for a very different look and feel on my 1971 Supersports and 1973 Raleigh, but thankfully both setups can be fully comfortable for me.
Hopefully I am wrong. There are also the "S"-branded ones that seem to be about 10cm and found only on Schwinns of course.
89mm and 108mm/110mm make for a very different look and feel on my 1971 Supersports and 1973 Raleigh, but thankfully both setups can be fully comfortable for me.
12-21-19, 12:33 PM
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Why a Cinelli specifically? Tons of 60s/70s stems came in the 25.4 clamp diameter needed for your bars. 3TTT, Ambrosio, Nitto, Dia Compe etc...
12-21-19, 02:25 PM
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12-21-19, 02:32 PM
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That's what I thought I read somewhere, I think I will just end up sourcing a Schwinn "S" forged GB stem in the slightly longer length and leave it at that, like I said, I like the rando bend so I am stuck with that, will source the Schwinn Approved yellow dot brake levers with safety extensions at the same time I do the swap, Todd
How about full pics of the Paramount plz?
12-21-19, 02:38 PM
#11
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Just because every reference I have seen for original equipment on the early to mid 70s Paramounts cited a cinelli stem and bars, not 100 percent sure but I recall GB forged stems coming in a myriad of lengths, the "S" forged stems may very well have been more limited, but I am pretty sure they were often found in the 100 mm length that would suit me better, as far as the Twin Sticks, that's a fabulous idea but if I end up swapping out bits and pieces I would more likely gravitate towards the Schwinn Approved Sun Tour bar ends, only limiting factor on those is sourcing the "Schwinn" marked cable stop. Todd
Last edited by Baypathbike; 12-21-19 at 03:28 PM.
12-21-19, 02:59 PM
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Anything that the factory couldn't do was then done by the dealer, virtually nothing was off the table, many things were no charge.
Its possible yours is original, might have been done by the shop when the customer asked for the rando bars which many did and Schwinn used them on many stock.
12-21-19, 03:09 PM
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Cinelli stem/bar may have been one of the numerous extra cost options available when ordering a Paramount at this time.
We should hear from Metacortex here; he has the catalogues & dealer materials complete in his head.
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Cinelli stem/bar may have been one of the numerous extra cost options available when ordering a Paramount at this time.
We should hear from Metacortex here; he has the catalogues & dealer materials complete in his head.
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12-21-19, 03:42 PM
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Flip Them Bars, Or At Least The Question
"On touring bicycles I use the super-rare Cinelli Campus handlebar, the Nitto (B135 in 45cms) and SR Randonneur (44)
On older bicycles (50s) I use a GB Randonneur handlebar..." @hobbs1951
(Of course, I've never even seen the Cinelli "Campus" bars, and recently bought a '72 Opaque Green Super Sport for the GB bars and stem, among other reasons...)
Last edited by machinist42; 12-21-19 at 04:10 PM.
12-21-19, 04:11 PM
#16
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Correct me if I be wrong but the insert diameter on those S stems are .831 or 22. Is the GB stem 22.2?
12-21-19, 04:28 PM
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Very cool, love that blue, tx!
Here's my 74 bought to confirm sizing this big, fits like a glove, rides like a dream although the Crane/LeTour RD shifting is far more finicky than Rally's for me, probably need to drill down, check hanger alignment, clean, lube and adjust or may be worn.
With the big Merz it was bought to validate, both ride much better than all the 60-64's that I already have, now what do I do?
Here's my 74 bought to confirm sizing this big, fits like a glove, rides like a dream although the Crane/LeTour RD shifting is far more finicky than Rally's for me, probably need to drill down, check hanger alignment, clean, lube and adjust or may be worn.
With the big Merz it was bought to validate, both ride much better than all the 60-64's that I already have, now what do I do?
Last edited by merziac; 12-21-19 at 05:01 PM.
12-21-19, 04:42 PM
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...this one came to me from the second owner, who swore it was all original.
But if it were me and I really wanted a Rando bend on the bar, I'd just buy a Nitto bar and stem. They're not real ornate, and are very well made.
12-21-19, 05:49 PM
#19
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12-21-19, 07:51 PM
#22
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Think the stem you are measuring is the later version of the S branded GB hoping the earlier version vintage-correct for my ride might work.
12-21-19, 07:57 PM
#23
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IMO it's best not to mix and match, and I'm not a big fan of shims either. If you want a Cinelli stem, get a Cinelli bar to and set it up race style. That's what they're meant for. I think if you like the feel and fit GB rando bars, keep the matching GB stem. It's cool anyway.
Or is it that the stem is too short? You imply that but didn't say it outright. There must be a lonely GB stem in a longer length out there somewhere.
Cinelli was always 26.4 during their heyday, which was their own standard and best used with itself. They didn't switch to 26.0 till sometime in the 90's when quill stems were already on their way out.
Or is it that the stem is too short? You imply that but didn't say it outright. There must be a lonely GB stem in a longer length out there somewhere.
Cinelli was always 26.4 during their heyday, which was their own standard and best used with itself. They didn't switch to 26.0 till sometime in the 90's when quill stems were already on their way out.
Last edited by Salamandrine; 12-21-19 at 08:00 PM.
12-21-19, 08:43 PM
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Radnner Anyone?
The "S" stem for my '72 Super Sport measures out the same. I happen to be polishing it and the chromed steel GB non-"S" stem from my '64 Sport Super Sport, (which is "Super" pantographed), and the earlier '64 stem is standard, while the '72 is .833.
12-22-19, 06:06 AM
#25
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Well that settles it then, my history has been with Raleighs and am relatively new to working on Paramount and fillet brazed Schwinn, never would have thought that the insert diameter of GB vs. Schwinn-labelled GB would have been any different. If you keep your mind open you learn something new every day, Todd
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