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Similar. Shifters are top mounted and BB look different otherwise the same. Again stickered Air with round main triangle and monikered Competition leader.

Taken with a crummy digital caliper and need to allow for paint, all measurements are "ish" Round Tubes: TT 25.5 ST 28.6 DT 28.8 HT 32 So consistent with most manufacturers standard size. Seat Stays teardrop shape. From Side view: upper part 11.6, widest point 16.7 near rear lug 12.3 Seat Stay...

That is good advice. I hadn’t thought of using the Tretubi and Air decals together as I thought it would be best to just have the one.

Thanks for all your efforts Jesper. I am now semi retired and hence my fixation with this. I have time. Cromor was a tubeset for the budget conscious buyer, I don't think you would go the extra mile to reprofile tubes, a builder wouldn't waste their time doing this, let alone a manufacturer...

The interesting thing about the RSC listing is that it says Luigi Borini bought it new. I have found a LB on a web site where he cites vintage cycling as an interest and a Cyclist on instagram with the same profile picture. He hasn't been on insta for a long time but I messaged him on both...

Jesper, I really appreciate all the effort you are putting into this. Thanks for reaching out to Tom.

T Mar on Bike forums previously confirmed that Some Air forks did not have the ridges. Do you know him? But the weight is critical in ruling Cromor out. The frame weight makes it impossible to be Cromor. Here is an eBay link for some similar forks https://www.ebay.co.uk/itm/165382777952 779...

Definitive proof I think is mission impossible, this is more Sherlock Holmes ...... deduction! ...... more sleuthing! The Olmo model with Cromor is The San Remo which didn't feature serial numbers or aero stays. So that's out. I can't find any custom builds with Cromor. From a post I found on...

Hey Jesper, you have pushed me to look harder at the Cromor option and I think I've found the evidence to rule that out. The Olmo Cromor frame was sold as the San Remo frame or Firenze Bike. It had round seat stays cheaper lugs and bottom bracket. So i'm confident it's not that. From a thread on...

Jesper, thanks for the reply. Mine is a repaint. The down and seat tube are round. The seat stays are aero. The blue one is the only one I've found on the Internet with the same BB, lugs, rear brake bridge, fork crown and colour scheme is pictured. The only difference is the seat stays are...

Found another, though not exactly the same shifter mount is on the top of the down tube. Listed as an Olmo Leader (Columbus Air/SL/SP tubes). The frame is from1983 and one of the first made partial of Columbus Air tubes. Suspect Olmo would build what you specified...

Thanks for the view Botty. Found these: SL with Aero stays. https://www.peterbrueggeman.com/cr/catalogues/olmo-ssn-bike6424-Campyrecord007.pdf https://www.peterbrueggeman.com/cr/catalogues/olmo-ssn-bike8435_LukeGadd.pdf Ciocc Air frame, showing Air stays...

Just checked the weight again after removing the BB. The frame is 1925 grams and the forks 637 grams. The fork weight is commensurate with other Columbus Air forks I've seen and the frame weight is similar to SL. The main tubes are round and the seat stays are aero shaped. It also has the brake...

Olmo bikes have come back and said Cromor. IMHO I think Cromor iss too heavy to be correct. Looks like a mix to me. I'll do some measuring.

Looks like I have found some more answers, though nothing conclusive. Not using a full set of Columbus Air tubing for the build only the fork tubes and seat stays which have a flattened profile is a thing with more than just Olmo...

Hey everyone, I'm building up a Columbus framed Olmo with a mix of Campy 9 speed bits. The frame I think is pretty special. I'm trying to identify work out what tubing it is made from to put the correct Columbus sticker on and the model if possible. The frame is 1940 grams ish and the forks...