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Carrera identification
Hello guys, while looking for christmas presents ended up with this yellow (repainted) beauty as gift to my girlfriend, its pretty nice bike as far as i can tell but it will be nice to have a little bit more details about it.
Specs are following: -frame size 50/52 seat tube CC/horizontal tube CC -seatpost is 26.4mm Markings i found on bottom bracket lugg - carrera and serial number A5? fork and dropouts dont have any markings My guess is mid-range carrera from mid 90`s with possibly replaced fork. Have a happy holidays! https://cimg5.ibsrv.net/gimg/bikefor...d66838d598.jpg https://cimg5.ibsrv.net/gimg/bikefor...642eea8d8a.jpg https://cimg5.ibsrv.net/gimg/bikefor...d149cddafb.jpg https://cimg6.ibsrv.net/gimg/bikefor...cd50580085.jpg https://cimg1.ibsrv.net/gimg/bikefor...0cb8d6b6e5.jpg https://cimg2.ibsrv.net/gimg/bikefor...ee0550f820.jpg |
My Carrera is one of my favorite bikes, both for looks and performance! The first ones were from late 80’s - early 90’s I believe. I don’t know what to make of the odd seat post size. They still make bikes and have a web site, so maybe they can give you more info. Here are some pics of mine I’ve pegged from 1995.
https://cimg5.ibsrv.net/gimg/bikefor...25c6a84e5.jpeg https://cimg6.ibsrv.net/gimg/bikefor...81808e2c4.jpeg https://cimg7.ibsrv.net/gimg/bikefor...a7765b6e3.jpeg |
Here's a more modern aluminum/ carbon Carrera
I picked up a few years ago. https://cimg0.ibsrv.net/gimg/bikefor...c599405b94.jpg https://cimg1.ibsrv.net/gimg/bikefor...60ddffa544.jpg |
Originally Posted by Spaghetti Legs
(Post 21254941)
My Carrera is one of my favorite bikes, both for looks and performance! The first ones were from late 80’s - early 90’s I believe. I don’t know what to make of the odd seat post size. They still make bikes and have a web site, so maybe they can give you more info. Here are some pics of mine I’ve pegged from 1995.
P.S. Thats a beautiful bike u have there! Edit: Looks like their website is gone https://www.carrera-podium.it/english/homepage.html There is one NA distributor but i doubt they will be able to provide any information. |
Based on the seat tube diameter, it wouldn't be Cromor. While Cromor is a double butted tubeset, it uses a single butted seat tube, with the butt at the bottom end. The wall thickness at the seat post end is 0.6mm. Consequently, it typically uses a 27.2mm seat post. A post diameter of 26.8mm would be typical of the plain gauge Aelle and Gara tubesets. 26.4mm is even smaller and down in the range of a lightweight hi-tensile steel. You should check the seat cinch slot for notable pinching at the top. Maybe the previous owner installed an under size seat post?
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Originally Posted by T-Mar
(Post 21255523)
You should check the seat cinch slot for notable pinching at the top. Maybe the previous owner installed an under size seat post?
https://cimg6.ibsrv.net/gimg/bikefor...374a649e55.jpg capiler shows 26.5mm but slot is still pinched a bit, id assume 26.6 will fit perfectly And yes u are absolutely right about CROMOR, the butting is on the bottom bracket side, thanks for help T-Mar! |
Originally Posted by T-Mar
(Post 21255523)
Based on the seat tube diameter, it wouldn't be Cromor. While Cromor is a double butted tubeset, it uses a single butted seat tube, with the butt at the bottom end. The wall thickness at the seat post end is 0.6mm. Consequently, it typically uses a 27.2mm seat post. A post diameter of 26.8mm would be typical of the plain gauge Aelle and Gara tubesets. 26.4mm is even smaller and down in the range of a lightweight hi-tensile steel. You should check the seat cinch slot for notable pinching at the top. Maybe the previous owner installed an under size seat post?
I also have a Gitane Mach 340 GTX which has original paint and stickers, seatpost diameter 26.2mm. Original stickers state Columbus Cromor Custom I also have a Motobecane Super Record 2, original paint and stickers identify it as Columbus SL. Seatpost diameter also 26.2mm So, although Reynolds 531 has a seatpost diameter of 27.2mm, it is gas pipe compared to these Columbus frames. Maybe seatpost diameter is not necessarily a direct guide to the quality of the frame tubing. Vintage Campagnolo Record seatposts appear frequently on e bay with diameters of 26.2 and 26.4mm. I'm pretty sure you would not have bought a gas pipe frame with one of these fitted to it. Maybe Italian and French frame makers bought sets of these tubes and the seatpost only has a thicker wall at the stress point, ie where the clamp is located... |
Originally Posted by levoz
(Post 21793305)
Very slow response but maybe some use.....I have a Carrera podium in the form of a Carrera 1. Seatpost diameter is 26.8mm and paint and stickers are original, they state 'Columbus' cromor on them.
I also have a Gitane Mach 340 GTX which has original paint and stickers, seatpost diameter 26.2mm. Original stickers state Columbus Cromor Custom I also have a Motobecane Super Record 2, original paint and stickers identify it as Columbus SL. Seatpost diameter also 26.2mm So, although Reynolds 531 has a seatpost diameter of 27.2mm, it is gas pipe compared to these Columbus frames. Maybe seatpost diameter is not necessarily a direct guide to the quality of the frame tubing. Vintage Campagnolo Record seatposts appear frequently on e bay with diameters of 26.2 and 26.4mm. I'm pretty sure you would not have bought a gas pipe frame with one of these fitted to it. Maybe Italian and French frame makers bought sets of these tubes and the seatpost only has a thicker wall at the stress point, ie where the clamp is located... In your case, all the frames are late enough that I would expect imperial diameter tubing and 27.2mm post. Even if byy chance, some were metric standard, I'd still expect a 26.6mm post. Assuming all the posts use the same outer diameter, the Reynolds 531 uses the largest post and therefore has the thinnest walls and is the lightest frame. The Gitane and Motobecane, by comparison would be the "gas pipe" frames, with Carerra being in the middle. Both Reynolds and Columbus typically used single butted seat tubes. While manufactures could spec a custom seat tube, I doubt they'd spec a double butted version. The theory is that the seat post itself effectively acts as the top butt and reinforces the joint. I've never across a fame with a double butted Cromor or SL seat tube. Having said that, it is possible to have the effective diameter of the seat tube reduced by scale, burrs or distortion during brazing. Normally, a respectable manufacturer will ream/hone the inner diameter to return it to spec but there have been cases where manufacturers simply installed a smaller post to compensate. I would hope that wouldn't happen with a Cromor or SL frame. Very rarely, we see a case where the seat tube was inadvertently installed upside down, with the butt at the top. Yes, you could buy Record post in 26.2mm and even 25.0mm. There are always exceptions to the rules, such as the Columbus MS seat tube and the aluminum tubes which had to use much thicker walls to compensate for lower material strength and metal fatigue. However, I think you find that most popular size for high grade vintage seat posts would be 27.0-27.2mm (for imperial seat tubes) and 26.4-26.5mm (for metric standard seat tubes). As far as I'm concerned, the post sizes for your Cromor and SL frames are atypical. It seems strange that they are all under size. If you're using calipers to determine the size, I wonder if there is a calibration issue? It would also be interesting to know if the outer diameters of the seat tubes are 28.6mm or 28mm. Finally, photos of the cinch slots would aid in determining if the posts are undersize for the seat tube. Something isn't normal. |
Originally Posted by T-Mar
(Post 21793515)
During the period question, there were two standard seat tube outer diameters, 1-1/8" (28.6mm) which was the imperial standard and 28mm, which was the metric standard. When comparing two frames using either metric and imperial seat tubes, and assuming the same seat post clearance (0.2mm diametral clearance is standard) the seat tube requirng the larger post wil have thinner walls and therefore be lighter and typically made of higher strength material. This is the basis for using seat post diameter as an indicator of frame strength. The assumptions are that the outer diameter of the seat tube are the same and the diametral clearance between the post and seat tube are the same.
In your case, all the frames are late enough that I would expect imperial diameter tubing and 27.2mm post. Even if byy chance, some were metric standard, I'd still expect a 26.6mm post. Assuming all the posts use the same outer diameter, the Reynolds 531 uses the largest post and therefore has the thinnest walls and is the lightest frame. The Gitane and Motobecane, by comparison would be the "gas pipe" frames, with Carerra being in the middle. Both Reynolds and Columbus typically used single butted seat tubes. While manufactures could spec a custom seat tube, I doubt they'd spec a double butted version. The theory is that the seat post itself effectively acts as the top butt and reinforces the joint. I've never across a fame with a double butted Cromor or SL seat tube. Having said that, it is possible to have the effective diameter of the seat tube reduced by scale, burrs or distortion during brazing. Normally, a respectable manufacturer will ream/hone the inner diameter to return it to spec but there have been cases where manufacturers simply installed a smaller post to compensate. I would hope that wouldn't happen with a Cromor or SL frame. Very rarely, we see a case where the seat tube was inadvertently installed upside down, with the butt at the top. Yes, you could buy Record post in 26.2mm and even 25.0mm. There are always exceptions to the rules, such as the Columbus MS seat tube and the aluminum tubes which had to use much thicker walls to compensate for lower material strength and metal fatigue. However, I think you find that most popular size for high grade vintage seat posts would be 27.0-27.2mm (for imperial seat tubes) and 26.4-26.5mm (for metric standard seat tubes). As far as I'm concerned, the post sizes for your Cromor and SL frames are atypical. It seems strange that they are all under size. If you're using calipers to determine the size, I wonder if there is a calibration issue? It would also be interesting to know if the outer diameters of the seat tubes are 28.6mm or 28mm. Finally, photos of the cinch slots would aid in determining if the posts are undersize for the seat tube. Something isn't normal. Columbus Cromor double butted tubing 0.9 0.6 0.9 and also 1/0.7/1.0(mm) although seatpost is 0.9/0.6 Columbus SL double butted tubing 0.9 0.6 0.9 mm and seatpost is 0.9/0.6 (thanks to equus for info) Carrera Podium 1 Seat tube OD 28.9mm including approx 0.3mm worth of paint. 28.6 - (2x0.9) = 26.8mm Original fitted ITM seat post = 26.8mm Motobecane super record II. Seat tube od = 28.3mm including paint. therefore 28.0mm - (2x0.9) = 26.2mm. Seat post = 26.2mm Gitane Mach 340 GTX . Seat tube OD = 28.3mm including paint. therefore 28.0mm - (2x0.9mm) = 26.2mm. Original fitted Campagnolo seatpost = 26.2mm |
Originally Posted by levoz
(Post 21802456)
a few more facts...
Columbus Cromor double butted tubing 0.9 0.6 0.9 and also 1/0.7/1.0(mm) although seatpost is 0.9/0.6 Columbus SL double butted tubing 0.9 0.6 0.9 mm and seatpost is 0.9/0.6 (thanks to equus for info) Carrera Podium 1 Seat tube OD 28.9mm including approx 0.3mm worth of paint. 28.6 - (2x0.9) = 26.8mm Original fitted ITM seat post = 26.8mm Motobecane super record II. Seat tube od = 28.3mm including paint. therefore 28.0mm - (2x0.9) = 26.2mm. Seat post = 26.2mm Gitane Mach 340 GTX . Seat tube OD = 28.3mm including paint. therefore 28.0mm - (2x0.9mm) = 26.2mm. Original fitted Campagnolo seatpost = 26.2mm You're making an incorrect assumption in your calculations. The SL and Cromor seat tubes are single butted. That is why the seat tube specs say 0.9/0.6 rather than 0.9/0.6/0.9 The 0.9mm butt is at the bottom of the seat tube to stiffen the bottom bracket region, where stresses are higher. The top, 0.6mm, non-butted end should be used to calculate seat post size. You should also deduct a further 0.2mm from the calculated inner diameter of the seat tube to allow for clearance fit. Imperial seat tube inner diameter for SL or Cromor = 28.6 - (2 x 0.6mm) = 27.4mm Correct seat post size is 27.2mm Metric seat tube inner diameter for SL or Cromor = 28.0 - (2 x 0.6) = 26.8mm Correct seat post size if 26.6mm Your seat posts are all 0.4mm (2 sizes) under the correct size. I assume the reported seat post sizes are those stamped on the posts because if they're measurements, the actual post sizes are almost certainly smaller based on the errors in your seat tube diameter measurements. I know it doesn't sound like much but that a significant difference when talking tubesets. Again, it's curious that the difference is consistent across all three frames. I wouldn't expect that if it was due to something like tube distortion. Typically, these sizes seat posts would be used on tubesets with walls that are two steps thicker than SL or Cromor. The appropriate Columbus tubeset for those size seat posts would be Aelle. |
Seat post diameter
Originally Posted by T-Mar
(Post 21803087)
A 0.3mm increase in diameter would be very thick for paint. Typically, the increase in diameter would be ~0.1mm. Since the increase is consistent across all three frames, this suggests your calipers need calibration or possibly there is some foreign material on the jaws that requires removing.
You're making an incorrect assumption in your calculations. The SL and Cromor seat tubes are single butted. That is why the seat tube specs say 0.9/0.6 rather than 0.9/0.6/0.9 The 0.9mm butt is at the bottom of the seat tube to stiffen the bottom bracket region, where stresses are higher. The top, 0.6mm, non-butted end should be used to calculate seat post size. You should also deduct a further 0.2mm from the calculated inner diameter of the seat tube to allow for clearance fit. Imperial seat tube inner diameter for SL or Cromor = 28.6 - (2 x 0.6mm) = 27.4mm Correct seat post size is 27.2mm Metric seat tube inner diameter for SL or Cromor = 28.0 - (2 x 0.6) = 26.8mm Correct seat post size if 26.6mm Your seat posts are all 0.4mm (2 sizes) under the correct size. I assume the reported seat post sizes are those stamped on the posts because if they're measurements, the actual post sizes are almost certainly smaller based on the errors in your seat tube diameter measurements. I know it doesn't sound like much but that a significant difference when talking tubesets. Again, it's curious that the difference is consistent across all three frames. I wouldn't expect that if it was due to something like tube distortion. Typically, these sizes seat posts would be used on tubesets with walls that are two steps thicker than SL or Cromor. The appropriate Columbus tubeset for those size seat posts would be Aelle. I have two Peugeot Perthus 753 frames. Seat post diameter is 26.6mm. It seems that french bikes have metric tubing, so 28mm od. 28.0 minus 2x0.5 mm does not equal 26.6 mm. |
Originally Posted by levoz
(Post 21803221)
Surely seat posts are not an interference fit. Reynolds 531c seat post is single butted 0.8 mm and 0.5mm. according to you the seat post diameter should be 28.6 - 0.5 + 0.5 therefore 27.6 and not the actual size which is 27.2mm. the difference is 0.4mm . The same applies to the tubing that I have described, except that the difference is 0.6mm.
I have two Peugeot Perthus 753 frames. Seat post diameter is 26.6mm. It seems that french bikes have metric tubing, so 28mm od. 28.0 minus 2x0.5 mm does not equal 26.6 mm. I never stated that seat posts are an interference fit. I said they were a "CLEARANCE FIT". That's why the correct post size in my examples are 0.2mm (one post increment) smaller than the nominal inner diameter of the seat tube. I don't know why you're digressing to Reynolds when we were discussing Columbs but Reynolds introduces it's own complications. Being British, the wall thickness is actually based on Standard Wire Gauge, which doesn't translate into a nice, even metric figure. The non-butted wall of Reynolds 531C is 24 SWG, which is 0.559mm and closer to 0.6mm than 0.5mm, however it's advantageous for Reynolds to round down and market the tubes slightly thinner than actual. Since posts don't come in odd increments, you go down closer to 1-1/2 sizes and the correct size post for Reynolds 531C is 27.2mm. French bicycle came with metric standard tubing into the early 1980s. Around the mid-1980s most French manufacturers started converting to the imperial standard. Not everybody converted at the same time. |
Carrera Podium? This one's got me stumped...
This bike was given to me by a friend (who acknowledged it was special, but he had no room in his new living space, and had too much going on in his life to prepare it for sale... so he simply bequeathed it to me). That was 5 years ago. It finally came up in my project queue, and I am in the process of freshening it up. I have replaced the original tubular rims with a set of NOS Wolber clinchers (apologies to the purists). I am trying to identify exactly what I have... (by the way, I will be selling this on behalf of my friend, who is battling cancer. I will donate 100% of the proceeds to The American Cancer Society in his honor)... stay tuned, I will list on the Marketplace very soon.
The Carrera name seems to have gone through several incarnations. This particular bike pretty closely matches one that I found on the The Pro's Closet website (recently sold for $1400)... except for a few subtle differences: Mine just "feels" like it was built in the 90s, from the 8-speed Chorus group to the overall wear and tear... whereas the Pro's Closet version claims to be a 2007 (and has updated Record carbon crank and 10-speed drivetrain)... ???? Mine CANNOT be that new... Another subtle difference is the 2007 version has the Carrera bird stamp at the seat post lug; mine has no such stamp. The paint jobs, while the same pattern, have slight differences.. mine has sprayover onto the seat tube; the 2007 does not. The head badges appear to be similar (if not the same), but the 2007 has white background, and mine is gold (or the white has completely worn off?) IS it possible that Carrera made a replica (in 2007) of a previous original version? Or was this so-called "2007 version" actually the original, except updated with new components? Could mine be an original? It's fairly confusing due to the similarities, YET I can see there are obvious differences! I can't seem to find any information online... Any insights would be most appreciated. Thanks! https://cimg1.ibsrv.net/gimg/bikefor...d1a97508f8.jpg Carrrera with Campagnolo Chorus (8-speed) group, appears to be from the early 90s?? https://cimg5.ibsrv.net/gimg/bikefor...003d2587da.jpg One of the decals on the frame indicates "Carrera by Podium"; others read "Carrera Biciclette" https://cimg9.ibsrv.net/gimg/bikefor...ea4a01479a.jpg Head badge appears to have a gold background, or did some background color wear off? https://cimg0.ibsrv.net/gimg/bikefor...57ca462400.jpg Overspray onto the lugs; 2007 version doesn't seem to have this; and there's NO sign of the Carrera bird stamp on the lug (which does appear on the 2007). https://cimg9.ibsrv.net/gimg/bikefor...166c7c2404.jpg Chrome fork with Carrera lettering on the crown |
Originally Posted by montclairbobbyb
(Post 22159693)
This bike was given to me by a friend...I am trying to identify exactly what I have...
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Thanks, T... Seems like the evidence points to '94-'95... So that's the story and I'm sticking to it... 👍
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Looks like a carrera zeus, not certain when the Zeus became the Volans but from what I've dealt with the Volans was just a new generation of the Zeus. They share similar paint jobs, I remember this yellow, the white with blue like the one further up, and a blue with yellow and blue pattern. I had a Zeus from the last year they made them, I bought it in 2000 or 2001 and the only difference between it and the Volans I bought in 2012, which was a left over from a couple years prior, was the tubing. But the earlier Zeus to the later was the eagle logo, lack of lettering on the BB and slight changes to the style of the lettering. All of them are just really nice frames and worth having.
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There's a nut missing on that front brake.....
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