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What year is this Mondonico Dimond.

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What year is this Mondonico Dimond.

Old 06-14-15, 04:46 PM
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Rupesh.sloane
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What year is this Mondonico Dimond.

I cannot find the exact year of this Mondonico Dimond bicycle, tubing made by Columbus and it has SLX written on it.
Could someone please help me, Ive been searching for hours.
Serial #56M1
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Old 06-14-15, 04:55 PM
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If you have access to the bike check the component date codes. The easiest one to read is on the back of the crank arm. It'll be a 2 letter code.
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Old 06-14-15, 05:12 PM
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Im thinking 84 as you can see posted after the dash in the first photo? Does anyone know how to decipher the Serial number on a Mondonico frame?
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Old 06-14-15, 05:16 PM
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Originally Posted by Rupesh.sloane View Post
Im thinking 84 as you can see posted after the dash in the first photo? Does anyone know how to decipher the Serial number on a Mondonico frame?
Thats a Cinelli casting number for the BB shell, it has nothing to do with when the frame was made.
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Old 06-14-15, 05:23 PM
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Originally Posted by miamijim View Post
Thats a Cinelli casting number for the BB shell, it has nothing to do with when the frame was made.
The BB shell is still considered a component right? Do you have you bicycle in your possession, would you be able to check if it has 88 written after the dash?
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Old 06-14-15, 05:26 PM
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Originally Posted by Rupesh.sloane View Post
The BB shell is still considered a component right? Do you have you bicycle in your possession, would you be able to check if it has 88 written after the dash?
No, it is not a component....the '84' is probably the patent date of the shell. And no, I no longer have mine.
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Old 06-14-15, 05:30 PM
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Originally Posted by miamijim View Post
No, it is not a component....the '84' is probably the patent date of the shell. And no, I no longer have mine.
Ok. Yes, I have the bicycle in my possession but i feel as it has may new components.
But all the components are Shimano 600's and the code is FC-6400.

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Old 06-14-15, 06:25 PM
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Originally Posted by Rupesh.sloane View Post
Ok. Yes, I have the bicycle in my possession but i feel as it has may new components.
But all the components are Shimano 600's and the code is FC-6400.
That's the model.... FC = Front Crank.

Look for 2 smaller letters then check them here: Date of Manufacture of Bicycle Components can be used to date a bike: component dating
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Old 06-14-15, 07:11 PM
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Haha oops, Ok i think I found it and it has QD written on it and it says on the chart that they were made in Apr, 1992. But when i was reviewing Wikipedia, it stated that the FC-6400 with the down two index shifters was manufactured between 1988-89.
https://en.wikipedia.org/wiki/Shimano.
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Old 06-15-15, 05:11 PM
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84-87 based on the nearly identical one I had. If 6400 was OEM, '88 is as old as it gets...
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Old 06-15-15, 07:05 PM
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6400 series goes through 1997
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Old 06-15-15, 09:14 PM
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Originally Posted by Rupesh.sloane View Post
Im thinking 84 as you can see posted after the dash in the first photo? Does anyone know how to decipher the Serial number on a Mondonico frame?
The two Mondos I have only have size numbers - one a 52 and the other a 54.

My older one is about 1984, and it has shorter chrome areas on the rear stays. It has the same construction (fastback) as your Diamond but does not have the Diamond name. Its tubing sticker says Columbus, but no tubing type designator. I recall that from early Columbus bikes.

My newer one is 2005, has a mono strut, and is over size EL (aka ELOS). It was one of the last years Antonio Mondonico was making frames.

My guess is yours is from the '90s or early 2000's.

We usually think of great Italian racing bikes only being built with Campy, but yours seems to have vintage (older than the bike) Shimano 600. That does tend to lean toward an '80s build. My 1984 came to me with Shimano 600/6207, and I bought it from its original owner late 1985 or 1986. That's where my estimate of 1984 came from. He had ridden and raced it for two years. It was pretty common back then to buy a super frame and equip it with "basic racer" gear.

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Old 06-16-15, 05:03 AM
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If it's 90's or newer, may have a 130mm rear, which could be a clue to it's age. Mine, which was nearly identical to that, had to be spread a bit to get an 8/9/10 wheel into place. I know that's not definitive, just throwing it out there.
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Old 06-16-15, 03:42 PM
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I just emailed Mauro Mondonico will just have to wait for what for what he has to say.
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Old 06-17-15, 06:10 AM
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Please let us know what you find out!
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