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G Vanni = Giovanni Losa ?

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G Vanni = Giovanni Losa ?

Old 10-01-17, 12:00 PM
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Miloburnz
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G Vanni = Giovanni Losa ?

I bought this bike a couple of years ago in Viareggio, Tuscany as i worked there for a couple of months so used it after work and weekends for exercise and sightseeing. Cycling in the area is a popular pastime and one day i came across a local on Bianchi who commented 'Vanni Losa' when he saw the bike so i assumed it was a Losa . I have been using it as a regular run around and get to work bike but recently i got on google and started searching for the bike but cannot find anything like it so now i am not even sure if it is a bike built by Giovanni Losa .

The vendor said it is early 90's . Groupset is Campagnolo Victory apart from the rear derailleur has been swapped out for an earlier Nuevo Record so i assume the original owner was not too happy with the Victory derailleur. Rims are Mavic Open 4CD ,brake levers Shimano SLR and seat post 27.2 .

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IMG_3995.jpg

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IMG_3998.jpg
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Old 10-01-17, 12:10 PM
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Maybe, but I don't see any of the typical little touches that Losa usually added to the lugs and other bits in the known frames he built for other brands (often a sort of "kidney/teardrop shape or something that resembled a stylized "Y" or "T"). Plus never seen that exact BB shell hole pattern before in any of his "known" frames. So my bet would be "not likely" but anything's possible. looks like a quality frame whoever built it and with a 27.2 seat post coud be at least a "tre-tubi" of SL or equivalent. Did you check the steerer base interior for "rifling"?
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Old 10-01-17, 12:14 PM
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Nothing to add other than that's a very nice looking bike. Loving all the chrome
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Old 10-01-17, 12:20 PM
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Originally Posted by jamesdak View Post
Nothing to add other than that's a very nice looking bike. Loving all the chrome
Not to mention the nice paint work.
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Old 10-01-17, 01:22 PM
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Originally i thought the "V" on the bracket was the "Y" you mention like the Losa frames but seems whoever built it went to a lot of detail especially running all the cables inside the frame . Never taken the steerer apart to check for rifling , only item i have serviced so far is the bottom bracket .
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Old 10-01-17, 01:43 PM
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I did a quick search then hit ebay to see if anything was there.

Here's a Losa frame. Notice the lug cutouts. They are typical Losa work.

Vintage. Losa Vanni. frame&fork .steel L'Eroica.Columbus | eBay
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Old 10-01-17, 02:02 PM
  #7  
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Most Losa bikes do have the heart shape cut out , the only reason i thought it was maybe a Losa was in Italy a couple of people referred to the bike as a Vanni Losa but maybe its that there are not so many Italians called Giovanni who built bike frames so they just assumed it was a Losa Vanni .
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Old 10-01-17, 03:06 PM
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It's almost impossible to find decent pictures online of Vanni bikes (especially with the photobucket debacle), but I think your Vanni was made by Gino Vanni from Migliarino Pisano. Other than building frames under his name he also (allegedly) built for Santini, Fanini and Falaschi.
Does the sticker on the head tube mention Migliarino?
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Old 10-02-17, 09:04 AM
  #9  
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No Migliarino on the badge , here's a photo of it . I guess it was a small company but Gino Vanni was obviously a very good frame builder , the bike is a really nice ride .

I have just by chance found another for sale in Italy but an earlier model than mine without so much detail.

https://www.kijiji.it/annunci/bicicl...ioni/116993280

IMG_3996.jpg
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Old 10-03-17, 02:43 PM
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Originally Posted by Miloburnz View Post
Originally i thought the "V" on the bracket was the "Y" you mention like the Losa frames but seems whoever built it went to a lot of detail especially running all the cables inside the frame . Never taken the steerer apart to check for rifling , only item i have serviced so far is the bottom bracket .
You only need take the front wheel off and tip the frame up so you can shine a light into the base of the steerer, if there's rifling (denoting Columbus SL was used for the fork) you'll see 5 spiraling and rather subtle ridges going up a few inches. Rule of thumb is that if you have this plus a 27.2 seat post the probability is high that the frameset is at least Columbus SL (or SP or a combo of them). Edit: SP is size dependent and usually only used for seat tube frames of larger than 60cm, in these the seatpost might be 27.0
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Old 10-03-17, 03:33 PM
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Thanks for the info ,sorry but i thought you were referring to the head tube , so i took the wheel off and cleaned up the inside of the steerer tube and yes there is definitely rifling inside the tube . So this is significance that it is all columbus SL ? In the early 90's would this have been considered a professional race bike .
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Old 10-03-17, 06:40 PM
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IMO you can claim it's all Columbus SL and be well-assured that you're correct (99%). If you get the BB out to service that take the opportunity to shine a strong light into the butts of the 3 main tubes at their junction with the BB shell, if you see spirals THERE then this is SLX, but my guess is this frame might not be late enough for SLX (generally said to be 1985-on but may have been available a year or 2 earlier than '85)
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Old 10-26-17, 09:23 PM
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G.Vanni
and Giovanni "Vanni" Losa are not the same person/builder.

A Vanni Losa frameset has the V-shaped cutouts (not heart-shaped), with the notable exception of when he was the master framebuilder in charge of Cinelli's Super-Corsa model (in which case, there was no personalization - it was all Cinelli-branding down to the cutouts and other details). Aside from the legendary Cinelli Super-Corsa, Giovanni "Vanni" Losa built under his own name, Losa, as well as for Magni, Turconi, Poretti, and other small brands. That is not to say that he built all of their models - rather, only their top of the line. However, he did have quite extensive facilities with a full staff, so I am not excluding that other models could also have come out of his shop, for some of the smaller brands. I'm just saying, that just because he built for a brand, doesn't mean that they had all of them made by him - and that what he touched personally, were the top of the line.

Now I don't know much about the G.Vanni brand - perhaps it stands for Giuseppe Vanni?
(there is a pretty high possibility of this, because many Italian men are either Joe (Giuseppe) or Tony (Antonio)!

But if you guys want info about a bike named Vanni, I suggest you go back to your search engines.
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Old 10-30-17, 12:52 AM
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Already mentioned in this thread that i initially mistook the V for the signature heart shape famous to Losa bikes and G Vanni has been determined by Mauricemoss to be Gino Vanni who built frames for Migliarino Pisano amongst others .Tube set is columbus SL .
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Old 11-24-17, 10:52 AM
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Originally Posted by Miloburnz View Post
Already mentioned in this thread that i initially mistook the V for the signature heart shape famous to Losa bikes and G Vanni has been determined by Mauricemoss to be Gino Vanni who built frames for Migliarino Pisano amongst others .Tube set is columbus SL .
OK, sorry I overlooked that.


Things would be easier in the bike world, if Italians named their boys among more than just Joe or Tony
( Guiseppe/Giovanni - or Antonio )
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Old 04-08-20, 12:14 PM
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Hi!
I think I have a Vanni Losa bicycle, but it has a crown on top of the fork. It has got all the "V"s and Losa pantographed on the seat stay.
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Old 04-08-20, 12:20 PM
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Originally Posted by Nbikes View Post
Hi!
I think I have a Vanni Losa bicycle, but it has a crown on top of the fork. It has got all the "V"s and Losa pantographed on the seat stay.
As soon as able, post some pictures. If Losa is on the seatstay it was marketed under his own name and you have a beauty.




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Old 04-08-20, 12:26 PM
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It has all the markings that appear in your first two pictures. On the third one, where "cassani" is written mine says "Losa".
I can't seem to post any pictures. It says that I need to post 10 times before I am allowed to do that. Is that correct?
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Old 04-08-20, 12:32 PM
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This is the message I get:
"You are not allowed to post URLs until you have at least 10 posts"
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Old 04-08-20, 12:46 PM
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On the frame bottom bracket it has got a number under 2400. I think it is its serial number.
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Old 04-08-20, 07:52 PM
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Originally Posted by Nbikes View Post
This is the message I get:
"You are not allowed to post URLs until you have at least 10 posts"
Correct. Add a few posts today and tomorrow and you are there!

The Losa I posted was a weird one since it is definitely a Losa but Cassani is the mystery. No bike company named Cassani anywhere. A few folks here have surmised it might have been a small shop somewhere that badged the Losa frame....

Of course, I dream that it was made for Davide Cassani...it is in the queue to be reborn into something cool and different!
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