Hey everyone.
I came to this forum in desperate times. After some time of saving some money i recently bought a beautiful bianchi bike second hand.

Now today, i was biking and while i changed geared i heard something crack and felt my wheel block. At first I thought something came between the spokes (is that even the correct english word?). But it was my derailer that just broke of and hit the spokes.

After some googling i learned I need a new hanger for the derailer (shimano 105 derailer). But to know what hanger I need, I need to find out which model bianchi bike I have. So this is where I need your help.






I hope the pictures are clear enough and you guys can help me. Very desperate ATM

Going to the bike shop after work tomorrow, but i feel really sad. I can't even explain it, even though it's "just a bike".. I feel like I lost some of my freedom? I really loved just driving around. * sigh*

The pictures do not show the part that broke

I don't know but I like it.

The shop should be able to help you. It's no big deal, it happens.

no it's just the derailleur hanger that is broken, i don't have pictures of that (I can't get it off and it's a bit dark, i will try to do so tomorrow)

thanks! I'm in love with it, ever since I saw it at first!
Thank you! I thought it would be really hard to repair if you didn't know which model your bike was!

I'm suspicious that the Bianchi decals on the bike may not be original, which is making it awfully hard to identify.

Looking at other bikes of this one's approximate vintage, there were typically Bianchi decals on the down tube and seat tube, and a model name on the top tube. I haven't found any with Bianchi logos on all three of the frame's main tubes without a model name. The Bianchi logo on the side of the fork blade isn't typical, either, nor is the lack of a head tube decal. Is there a tubing type, frame size, or any other decal on the seat tube?

Without a positive ID of the year and model (or whether it's a Bianchi), there's still a good chance you can find a replacement derailleur hanger. You (or your shop) may just have to make a visual match from available replacements. We might be able to help, but we'd need a picture of the broken hanger (with derailleur removed, preferably). A picture of the frame dropout where it attaches would be helpful, too.

You'll also want to check the derailleur and wheel for damage. And try to figure out why/how this happened in the first place so you can make sure it doesn't happen again.

Oh no! that sounds kind of weird! So there might be a possibility my bike might not even be a real bianchi? Damn.

As far as I could identify there was a number on the bottom of the frame (but I am at work right now so I don't know the number). I will check the other places for some information.

No, there were some years- at least back in the 90s, where they didn't always have model names on them, just Bianchi on all three tubes. Find the serial number and see if you can get more info out of Bianchi USA with that.

Contacting Bianchi USA like demoncyclist suggests is definitely a good place to start. Not only may they be able to confirm the bike's authenticity based on the serial number, but they could tell you what model it is and maybe even sell you a derailleur hanger while they're at it.

The Bianchi USA web site doesn't seem to have any contact info on it, but you can try calling them at (510) 264-1001.

I live in the netherlands so I think calling a number in the USA will be quite pricey!
I found a number under the crank, it's K38600359 (that 8 might be a 6, very hard to see ). Is there somewhere I can look it up?

...and since Bianchi USA has often operated quite separately from Bianchi in Europe, there's a good chance they wouldn't be able to help anyway! There were plenty of models that only existed on one side of the Atlantic or the other. On the bright side, that means I'm not nearly as familiar with models you might see in the Netherlands, so maybe that's why it looks 'off' to me.

Bianchi's site for Holland, like the American site, doesn't list much contact info. The only number I found on it is for the store, but maybe the people there can help you or at least point you in the right direction. The number on the web site is +39 0363 3161.

There's not a Bianchi serial number database that I'm aware of and Bianchi serial numbers have varied wildly over the years. There is, however, a thread on these forums where a bunch of people have traded info on their Bianchi serial numbers and maybe you can find similar serial numbers in there:

https://www.bikeforums.net/classic-vi...ification.html

Looks like 9-speed 105 components (Shimano 5500 series). That should date it to ~1999-2007.