Frame authentication (Dedacciai Ti?)

adanpinto

Hi,

I have been a passive user of this forum however this is my first post.

I have just purchased a Dedacciai titanium frame on ebay and I am not quite sure about the origin of the frame. I would like to authenticate it.
Some features are: frame is from 2005/2006, seatpost diameter is 31.6 and the seat tube has an aluminum sleeve inside.
Any of you could give some hints about the builder of this frame. Check out the pictures in the link below: https://www.flickr.com/photos/12858904@ ... 575283605/

Thanks in advance,

Adán

g00se

I have to say, the Dedacciai decal looks suspect

Dandelionclock30

I think you've been ripped off there unless it was £50 or something like that. Thats never genuine, its a snide/fake of some description.

napoleond

Whaaa? Looks more like a painted aluminium frame.

Defo looks suspect.

cornerblock

Blimey! That's some crude welding whatever it is.

nochekmate

Hope you paid by Paypal - if you did, contact the seller and ask for a refund on return of the frameset. Does not appear to be as described and the joins look more along the lines of an aluminium frameset (and a poor one at that) rather than a Ti.

Visit eBay's resolution centre and get it sorted - you'll get your money back through Paypal if that was your method of payment.

Good luck.

MisterMuncher

Any Deda Ti frame I've ever seen had straight seatstays and much, much nicer welding. I'm fairly sure they had a replaceable hanger too.

Bordersroadie

Some of the welding does look like Ti (eg the BB) but the right hand dropout looks well dodgy, like aluminium welding or a really bad repair on Ti maybe.

Alarm bells would also ring for me seeing a clear lacquer over Ti as Ti bikes are (almost) always bare metal, but maybe Deda do (or did) lacquer theirs?

Monty Dog

If it was Deda it would have a Deda K1 tubeset sticker on it - this isn't a Deda frame. I've bought a number of custom titanium frames from China over the last 10 years and the quality of this frame finish is pretty poor IMO - the bent seatstays are similar to XACD. That said, whilst the welding is crude-looking, it doesn't mean it's weak. I hope you didn't pay a lot of money for it - originally it would have been $500, so if you paid more than £150, don't expect to get your money back if you sell on.

adanpinto

Reality is that I have had seen-owned some titanium frames in my life. This frame has oversize tubes so the welding is a bit thicker than usual and the welds are also polished making for a different look. Also doesn't help the fact that some genius clear coated it change a lot the appearance of the welding. I know it's not a firefly but I am sure it's a good titanium frame (oval shapped downtube, oversize chainstays, curves seatstays, aluminium sleeve in the seat tube (as it has the dedaccia K-19 tube set)...).

Monty Dog

I would still say it's titanium - the cowled drop-out and hanger and the give-aways - you couldn't make it like this in aluminium. If it was alloy, the QR 'bite' marks in the drop-out would be shiny silver. If it's not bent and rides OK, it would a decent winter trainer - just ride it until it dies.

g00se

Hi,
Sorry - I know you said you were only interested in the origin of the frame but this thread got my interest piqued. Anyway, I google-image searched your frame and found this ebay ad from italy. I'm certain that's your frame and forks. The guy was trying to sell the frame as a modern K19 Deda frame (the spec has a tapered head tube with integrated bearings etc). The listing was pulled because of an error in the listing:

http://www.ebay.it/itm/telaio-bici-cors ... 1259071776

Later on, the same seller relists with the same photos an Aluminium frame - it's sold in September:

http://www.ebay.com/itm/Telaio-bici-cor ... 1316884970


As you bought it as a titanium frame, either he mis-labled it when re-listing, or someone bought it as alloy and then sold it on again as Ti.

Another thing that looks suspicious, the brushed finish on the frame under the clear coat is quite rough (more obvious in the ebay photos):



As most ti frames are bare, you would think the finish would be better. It looks more like a roughly hand finished frame after being paint stripped/blasted. Then clear powder-coated. It reminds me of one I did like that myself.

I would still say it's titanium - the cowled drop-out and hanger and the give-aways - you couldn't make it like this in aluminium. If it was alloy, the QR 'bite' marks in the drop-out would be shiny silver.

My wife has a alloy bike (genesis) with cowled dropouts - though the hanger is replaceable. Also, if left for a while, aluminium bite marks will turn dull grey.

You could try scratching the dropout where it isn't clear coated to see if the fresh metal shines silver or is dull straight away. It may be worth doing this inside the head tube and BB if you don't want to obviously mark the frame.

Ben6899

OP, I wouldn't get defensive about this, people are just trying to help you.

adanpinto

Thanks Goose for the research. (the frame in the first listing has a deda k-19 sticker in the seat tube but I guess someone persuaded the seller to sell it as aluminium...).
I had already known all this info before posting but imho this is not giving any extra info about the original builder of the frame.

In this point I am quite sure the frame uses a deda ti tubing (it has the same aluminium sleeve inside the seat tube and the same tubing diameters and shapes in the main tubes)but I haven't found yet a picture of a dedacciai titanium frame from 2005/2006.

And, please don't worry about its material, it's titanium. I've been discussing with people from Paduano, Nevi, Passoni and Rewel and no one told me this is not a "titanium" frame.

adanpinto

Ben6899 wrote:

OP, I wouldn't get defensive about this, people are just trying to help you.

You are right Ben and I am sorry if I looked defensive.

Ben6899

adanpinto wrote:

Ben6899 wrote:

OP, I wouldn't get defensive about this, people are just trying to help you.

You are right Ben and I am sorry if I looked defensive.

No need to apologise. Just take heed - there are some very knowledgable people on here and we all want the best for each other on these types of threads.