escuta

Hi Forum,

I've been looking for a steel frame road bike that I can gradually tinker with to get to a good state. I've come across a De Rosa Primato which has some fairly average looking fittings but is going for a low price and looks like it might be a good a project. The seller says that it has been in storage for 30 years, but I wonder if people here can judge the age? The seller also claims it's a size 54. To me it looks larger and I am looking for something between 57 and 60 as I am 187cm tall (6ft 1.6). I live in a country where it is difficult to find larger sized frames - my current bike is 59 - a good size but I think I could go a little smaller if necessary. The breaks are dura ace and the rear derailleur is Shimano Sora.

So my questions are: Is this a good quality and reasonably light de Rosa frame (or were later models of lower quality)? What do you think the size is, really a 54? What age is it? Are the forks steel but simply unthreaded and could I replace the stem with a quill stem? Worth getting!?

I'll attach the photos. Thanks for your help!

plonz 

I’m no De Rosa expert but my first reaction was the forks were a threadless replacement. Then I saw other examples online with this same fork style and quill stems. I’m now thinking this is the original fork with a threadless adapter and black spacers.

Size looks like a 57/58 to me. I’m 6’1” and have several bikes this size but have to make them work. Guessing you’ll need to do the same. Long seatpost and 90 degree quill stem with 120-130 reach works for me.

escuta

Thanks, yes, there are some de Rosas, apparently from 1995, which have sloping sided forks, so that matches the amount of time it was in storage and later models from the 2000s with threadless stems. I think it may have been painted as the decal on the front of the bike is missing the diamond which seems to be otherwise universal and the other decals just don't look very good at all. The frame though, looks right to me.

Edit. Although the seat stay looks thicker than than a 1995, so maybe it's newer.

DMC707 

if it’s a Primati it may very well be EL-OS tubing so will be a little bigger diameter

SJX426 

Hard to judge the size but based on the HT I would say it is not your size. Keep looking.
I have a Colnago that is too small that rarely gets ridden because of its size. Better to have one that fits.

I don't think you can go wrong with a De Rosa of any level.

escuta

Thanks. Yesterday, I actually did a comparison with a photo of my Principia (taken before lowering the stem), scaling the photos so that the wheels matched. Allowing for error, I think the size is pretty compatible.



For various reasons, I'm going to stop myself from buying or asking questions until the beginning of next month. If it's still there, I'll then make some checks as to the bike's history. serial numbers, etc.