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Help, De Rosa bike identification(20 posts)

Help, De Rosa bike identificationtronracer
Jul 2, 2002 6:35 AM
Tubing, SL or SLX? Or something else...
Super record components...

Decal appears to be SL tubing.. mid eighties my guess ntDeRosaOrBust
Jul 2, 2002 6:42 AM
Help??? c'mon tron....Spirito
Jul 2, 2002 6:53 AM
its on ebay - ask the seller. makes sense?

The seller is sending more pics to me, but....tronracer
Jul 2, 2002 7:29 AM
he doesn't know much about the bike at all. JEEEZ. Bite my head off why don't cha.
asking questions is coolSpirito
Jul 2, 2002 9:54 AM
but issuing a "help" cry is a little boring.

the seller even if he does not know much about the bike
should be able to read the frame tubing label as it pretty evident in the photo. im sure he can see it more clearly then we can. i would rathger his eyes than some vague opinions that we can only guess and i think you would to.

the year and stuff is trickier but i thought perhaps you would have done some school work of your own since deciding to keep your deRosa. part of the joy AND resposibility of owning an older bike is learning about it.

perhaps i just figured that you may have followed the brand and picked up on some info of your own rather than what others have contributed here especially as you have one that is pretty similar. there are other forums and the web has a lot of sources and info. a little time and applictaion is not that hard. even scrolling through and searching here would help you understand a bit more with regards to the manufacturer and the frame materials and perhaps year.

whilst you may think im biting your head off - perhaps im just stimulating you to spend a little time before using strong words like "help". there is nothing like knowledge of your own and it takes little effort.

fogive me if i thought your question was somewhat disrespectful but i did point out that as it was being sold on ebay wouldnt it be best to ask the seller.

as to the year of the model id say its close to 1988/9.

You are right Spirito..tronracer
Jul 2, 2002 10:14 AM
I'm sorry. I'll never do it again.
Research is better than conjecture...Walter
Jul 2, 2002 10:31 AM
but conjecture is free.

With those SL pedals I lean more towards mid rather than late 80s. Spirito is right about the SL/SLX question, if the seller can't read then he probably won't get your address right on the package either. :-)

Going to become a DeRosa collector? Nothing wrong though I personally go for variety. A Colnago and a Basso so far.

Good luck.
Looking at the pictures I think that it is most likelyDeRosaOrBust
Jul 2, 2002 11:59 AM
early 1980's vintage. Possibly 1982-85. This is based on a couple observations. First, it appears to have a bridged bottom bracket shell, which was changed to bridgless in the 1986 model. The head tube decal also is an earlier vintage. And of course the decal is not (from my observation) SLX. Also, the fork has a heart panto on it's side. This is an earlier fork. Now I can't remember if Derosa made a cheaper model then the Professional in the mid eighties. If they did with extra sl tubing and old parts then my theory is out the door.

~ sam
Owner of 1986 Derosa Professional and 2002 Derosa Merak
Good points and a couple of other thingsboneman
Jul 2, 2002 1:29 PM
The brake cable guides are braze on top tube jobs which tells me it's not late 80's. Curious if it has bosses on the st for a water bottle cage which would also help dating? Also, what's the rear spacing or simply put, is it running a free wheel? Also, if it's SL, 126mm in the back and one water bottle cage, I'd date it late 70's to early 80's.
Jul 2, 2002 3:30 PM
DeRosa used braze on top-tube cable guides until at least 1988.

I would guess it to be 84/85.

- In 85 C-Record and SuperRecord was offered but by 1986 most bikes of this type probably came with C-Record.

- Most DeRosa from the late 80's that I have seen came with both chainstays chromed.

- The late 80's graphics I have seen are similar to the one shown except they were one color which contrasted with the frame.
The most obvious clueunchained
Jul 2, 2002 3:35 PM
The date is probably stamped in the bottom of the bottom bracket shell as two digits along with the size. I don't believe they were stamped with a Serial/N.
I checked mine, only BB number was 14 ..go figure n/tDeRosaOrBust
Jul 2, 2002 4:26 PM
More De Rosa pics, updatetronracer
Jul 3, 2002 4:38 AM
Okay so this guy sent me more pics and he says the columbus sticker, "Has a bird on it and some italian phrases." I think that the SLX tubing sticker says SLX, but the SL sticker does not indicate that it is SL. Correct?

Thanks to everyone for their input.
thats not a bad bikeSpirito
Jul 3, 2002 5:49 AM
probably SL since it has the proprietry columbus sticker.

now what confuses me is that i think it may be an earleir 83/84 but im still pretty certain that the decal paint finish is later (88/89) and looks to perhaps have been repainted and finished that way at some stage.

black is a hard color to check for frame defects in pictures like dents and such. suss out what sort of experience he has selling bike things (his feedback) and if he appears to be knowledgable then you can expect a full rundown on the frame and its condition. it looks ok but its better to check.

is this for a mate as i think it ight be a little small for you? something tells me its ok but perhaps not worth spending too much on. it has something but doesn't standout like most derosa' as super elegant/clean.
ill take that back ....Spirito
Jul 3, 2002 6:18 AM
deRosa's with sloping fork crown's never appeared here in the states till 87/88 so the paint/decals may be original. it was a concession by deRosa as his traditional style fork crown was considered not fashionable even though perhaps its the much better and more desired design.

my heart was set alight by one of these with a sloping fork crown in 1988 but it had a full chrome fork and ive only seen a few like that since. columbus SL for the size of that frame is fine as i think SLX for a small framne is overkill and much stiffer than it need be.

sure it has super record but so did a lot of old bikes right up until at least 1990 or so as old stock was used up and some people still preferred it over the new C record.

thats my theory fwiw

oh, that doesn't look like any nrooks saddle i know. looks more like a concor which isnt bad and is period.
About size, fit, buying used......tronracer
Jul 3, 2002 7:23 AM
Before the De Rosa, I knew NOTHING about road bikes. I still don't compared to some of the people on this board, but I love learning which is why I emplore the knowledge of this board and hold it in higher regard than any other resource.

I wanted to buy used to save a lot of money, but I didn't really know what to look for in a used bike, and the whole size issue was a lot different than my knowledge of mtb size/fit. So I went to wrench science and did that fit thing. It read: 51c-c or 53 c-t. So I just went with it and began looking for bikes that size. I found the De Rosa 52cm in person at a bike swap and the guy selling it was my size if not a bit shorter. So I rode it around and it seemed to fit, so I got it figuring that if it was a bit small I could go with a longer stem. I am 5'8" w/ a 31" inseam 135lbs soaking wet, I'm thinking the next size, 54 would be too big? 53 might be perfect for me, maybe another maker....

If the paint job was after 86' wouldn't De Rosa use SLX tubing or did they use sl and slx at the same time?
you should be fine size wise...Spirito
Jul 3, 2002 8:37 AM
for some reason i thought your red one was a little bigger.

slx is a strudier tubeset with reinforced spirals or internal ribs. generally fro smaller framesets like these it isnt really necessary on the most part and just adds weight.

sl and slx were for a time offered together. slx was better for bigger frames or heavier riders.

as i retracted above - i think the paint is original and that the frame was from later than 86 (probably 87 - 89) - the sloping fork crown to me hints at this and was only offered for a short period from what i can tell.

A correction on the tubingboneman
Jul 4, 2002 4:39 AM
First off for Tronracer, the sticker for SL tubing says SL. I have a bike with just that sticker.

SLX is not a sturdier tube set than SL and it was not made for heavier riders. It's exactly the same tubing, diameters, butting profile, composition and wall thickness. The only difference was the spiraling put into the butted areas and only the butted areas. The thought was that this would improve strength at the area where the tubes went into the lugs.. The tubeset where the spiraling went the entire length of the three main frame tubes was TSX. I have two TSX frames. The heavy duty variant was MX, not MS, which I never checked out being a light rider.

At the time SL was offered, Columbus also offered SP. A tube set with greater wall thickness, and this was tubeset was meant for larger sizes. Some builders built with SL but used an SP downtube. At the time SLX came out, the SP variant was also made with the spiraling in the butted areas and it was known as SPX. And yes, SL and SLX as well as SP and SPX overlapped.

As for the DeRosa, the point about the fork crown is a good one but given the Columbus sticker, I think it could be a repainted model.
Actually columbus SL tubing decal did not say SL on theDeRosaOrBust
Jul 4, 2002 6:05 AM
decal in the 1980's. I know because I bought two SL bikes in the early mid 1980's. (Colnago Super, and a Paletti). Nor did any of my friends who had SL bikes have any other decal than the one I did. I know that there are now SL decals declaring that the tubing is SL for sale on ebay. Purhaps these are a later varient of SL decal. With all the different tube sets now offered by Columbus they might have added SL. But up until 1983-84 when SLX was introduced there were only two types of columbus tube sets: SL and Aelle(sp?). (Aelle was declared on the decal)
re: Help, De Rosa bike identificationFredrico
Jul 15, 2002 2:01 PM
Isn't that an "X" on the decal? The paint and graphics are definitely late Eighties. In the early Eighties, DeRosa used solid colors and simple letter decals, then juked them up with the extra graphics you see on this bike. By that time, '85, '86, SLX was the tubing of choice.

SL came with no "SL" marked on the decal until SLX came up in about '84. Later, SL was seen on the decals, presumably to distinguish it from SLX.

1986 is probably about right. You can feel the ridges where tubes are butted to the BB shell, if you take out the BB, but I'd bet it's SLX.

Great bike, in either case!