Hello everybody. Wanted to start by saying that i am very new in this forum and this is my first thread ever. I tried to search for answer through the search option here but didn't find anything... So i decided to make a thread.
I have bought an old road bike some days ago. But the frame has been repainted many years ago, so there are no signs or labels on it that would identify bike's manufacturer. Could you guys help me identify it? I have taken pictures of various parts and details of the bike.
I know for a fact that the saddle is not original.
If you are wondering about anything else - just ask me!

Welcome to the forums. The frame has some interesting characteristics. The workmanship is indicative of a production built frame but the serial number format looks like yy mm xx, which would typically be a small builder. The 26.8mm post indicates a medium to high grade tubeset. It has a short rear dropout with derailleur hanger and brazed-on shifter bosses and bottle mounts but not top tube cable tunnels. The front brake uses a recessed bolt but the rear doesn't. Derailleur cables are routed over the BB shell. The component mix is wide ranging, both in terms of age and quality. It has obviously been repainted and rebuilt with many non-OEM components and possibly even additional braze-ons, all which complicates identification. My overall impression is a very late 1970s, mid-range model.

As to the manufacturer, my initial thoughts were Motobecane, based on the style of the stay caps but the tubing isn't metric, based on the post size. Most of the Scandanavian market bicycles that we see comply with the Danish Bicycle VIN System. Consequently, this would be my next step in the identification process. Typically this number is stamped on the seat or down tube and will tell you both the manufacturer and year. Good luck.

https://en.wikipedia.org/wiki/Danish_bicycle_VIN-system

Thank you very much for such an informative answer.
But i didn't really understand how i should continue my search? There doesn't seem to be VIN number anywhere... Or am i missing something?

The bicycle may not have a VIN number. Only bicycles sold in Denmark must have a VIN number. However, samples from all over northern Europe regularly surface with VIN numbers. It seems unlikely that all these bicycles were originally sold in Denmark. More likely, the VIN numbers are applied on some bicycles intended for non-Danish markets. Some manufacturers may find it easier to standardize and apply a VIN to all bicycles. Similarly, multi-national importers may have VINs applied to all orders, regardless of the market, provided they sell bicycles in Denmark. In both cases it would greatly simplify the logistics of stock management.

Since VIN provides a simple and foolproof way to determine manufacturers and date, and is often found on many brands distributed in Northern Europe, it is a logical first step.

Yes, i understand that this is a logical step assuming there is a VIN number... But it doesn't seem to be the case for me.
I can't find this code anywhere on the frame.
I don't now if it helps at all, but i bought this bike from a guy in Lithuania. He bought this bike from a friend in Latvia.
That's as much as i know about the history of the bike.
The previous owner told me that he guesses that it is a Rudi Altig Schwinn frame... But i couldn't find anything by following this "lead".
Maybe it helps you in some way.

Nice bike, the seat post has a line under the word Stop. The post should be lowered to that line.

Is it really that bad if i have it like this? There seems to be a lot of post underneath the line, so i figured it wouldn't make too much of a difference if i have it 1 cm higher

Could anyone please help me?
I am trying out every option i have, but it seems like my recourses are not good enough.

I've never heard of a Rudi Altig Schwinn frame. The apparent era and history of the bicycle suggests the bicycle may have originated behind the Iron Curtain, with which most forum members have extremely little experience. It also explains why there is no VIN number. Some Italian maufacturers did market frames behind the Iron Curtain, so you may want to check if the bottom bracket threading is Italian.

The crank is labeled Coronado.

That's the model. It's made by Thun of Germany. However, it may not be OEM.

My apologies. Ive only ever seen a later model one. I thought it might have been a house brand relabel type of situation.

It's not an unreasonable assumption, given an unfamiliar name. Also, it wouldn't surprise me if there were private branded versions. What identifies these as Thun manufacture is the embossed 'T' just below the crank extractor hole. If the OP looks at the back of the crankarms, they should be embossed 'Thun'. Attached picture from BicycleFriends.

IT doesn't say anything on the back of the crank.
I don't know if it helps, but the size of bottom bracket is 68mm.

I was just wondering what do you mean by that? Is it the geometry that you thought was interesting or something else?

If I had to venture a guess, I'd say it's a lower-tier European bike. If the BB shell wasn't 68mm I'd say it was Italian. That's where I usually see the Coronado cranks. (BTW, there are various Coronado models, so whether it's a model name or a sub-brand remains to be debated. Anyway, they were made by Thun).

On another note: I really like that bike. The frame looks like it might be a nice rider, and the parts selection is just about the best you could get if you were on a budget. The Coronado cranks I have are very light and the Shimano Altus derailleurs function better than any Campagnolo stuff from the era.

I agree with T-Mar on the dating: late seventies. Here's my Legnano from that era, built in a similar vein:

What I found interesting was the eclectic and sometimes contradictory mix of frame features and components. These are stated in the first paragraph of post #2 .

Nice bike you got there
But i am still wondering what mine is... I've searched for a long while now and didn't get any further.
The thing is that i don't really see frames like that anywhere. The "clearance" between the frame and wheels is very small which you don't get to see on low end frames, or at least that's my experience that if the front wheel is very close to the frame (short wheelbase) - it's a very expensive bike.
And the fact that it weighs barely 10 kg is also confusing.
would REALLY appreciate any leads