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De Rosa SLX: Professional v. Primato

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De Rosa SLX: Professional v. Primato

Old 01-22-18, 07:54 AM
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Barrettscv 
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De Rosa SLX: Professional v. Primato

I have a De Rosa Professional with Columbus SLX, mine is from about 1986.

What is the difference in geometry and other features when comparing the Professional to the older Primato?

I'm considering acquiring a older De Rosa with SLX, this bike features a flat crown on the fork.

When was the Promato introduced? What differentiates these these two models? What is the difference in performance or ride/handling?

How does an expert know if it's a Primato or Professional?
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Old 01-22-18, 05:01 PM
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I'm a bit confused by your post. The Primato is, generally speaking, newer than the Professional and made from EL-OS tubing.
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Old 01-22-18, 05:36 PM
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How much older is the the other bike with SLX? I believe SLX kinda came out in 84/85 so there might not be much difference there

If the newer bike is EL OS it should be a lighter frame and might feel a bit stiffer
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Old 01-22-18, 07:29 PM
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Originally Posted by jiangshi
I'm a bit confused by your post. The Primato is, generally speaking, newer than the Professional and made from EL-OS tubing.
The seller of the SLX De Rosa stated that the bike might be a Primato, but wasn't sure. I'm 99% sure it's not a Primato.

Did De Rosa produce any other model with SLX and a flat fork crown, or was the Professional the only model built from SLX?
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Old 01-22-18, 07:59 PM
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Originally Posted by Barrettscv
The seller of the SLX De Rosa stated that the bike might be a Primato, but wasn't sure. I'm 99% sure it's not a Primato.

Did De Rosa produce any other model with SLX and a flat fork crown, or was the Professional the only model built from SLX?
I believe @gomango's wife had an SLX De Rosa that was labeled a Primato, not sure of the geometry on hers.

The Primato is a bit more laid back in geometry than a same sized Professional. I may have geo charts somewhere. I'll post if I find them.

I'll see about measuring mine. I have a 54.5 of both hanging in the garage.
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Old 01-22-18, 08:37 PM
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I recall seeing SLX being on larger bikes. Thicker and heavier but stronger. Cannot support that though.
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Old 01-22-18, 08:47 PM
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I recently picked up this '86 or so Professional with SLX tube set. It is a 61.5cm frame with flat crown and no chain stay bridge.
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Old 01-22-18, 09:04 PM
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Originally Posted by jiangshi
I believe @gomango's wife had an SLX De Rosa that was labeled a Primato, not sure of the geometry on hers.

The Primato is a bit more laid back in geometry than a same sized Professional. I may have geo charts somewhere. I'll post if I find them.

I'll see about measuring mine. I have a 54.5 of both hanging in the garage.
Still does.

TSX and from I can tell, it was a Nuovo Classico.

They were repainted as a batch for a local racing shop.

Apparently, all they had at the factory were Primato decals.

It most certainly is not a true Primato, but it's still a beautiful bike and she loves riding it on occasion.

I'll measure it later and add to the thread.
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Old 01-23-18, 09:59 AM
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I think the correct take away is that a Primato, by definition, is EL OS tubing. Personally, i think the Primato is a much more interesting, beautiful bike...and I like how my Primato rides more than any other De Rosa I've had.
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Old 01-23-18, 10:07 AM
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61.5?! Wow! I'm gonna guess you aren't short...
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Old 01-23-18, 05:51 PM
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6'3"

Originally Posted by nayr497
61.5?! Wow! I'm gonna guess you aren't short...
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