Jules Can't remember where I found this, but I found it somewhere in the interwebs! It'll help you date the frame anyway. AND MAYBE GIVE YOU SOME INFO ON YOURS LC The top three Bianchi bike models from the late 70s to the mid 80s were the Tipo Corsa, Super Leggera, and Super Corsa, plus the Specialissima frame set (came in Celeste). The Tipo Corsa used the cheaper Columbus Alle tubing, and the Super Leggera, Super Corsa and Speciallisima frameset were made with Columbus SL and Colubus SP depending on the frame size (I think the over 57cm c-t size frames were SP). Yes, there was a Specialissima in the 80s but it was sold as a frame set, not as a complete bike. In the 1960s there was a bike model called the Specialissima (the few that I have seen were black). I believe this was the second model down from the team bike (always Celeste). There was a fairly recent discussion (argument) on the list about the model name "Specialissima" being interchangeable with the model name "Super Leggera". A famous (infamous) earlyexlistmember said he had a 1978 Bianchi catalog that showed a "mod. Specialissima Super Leggera" as proof that the two names were interchangeable. I countered with this example of a "mod. Specialissima Corsa Professionale" <http://bulgier.net/p...ianchi1/9h.jpg> that I believe shows the team bike from 1968 to 1973, to show the names were not used interchangeably. Incidentally, I would guess that the Bianchi mod. Super Leggera dates to Campagnolo's introduction of it's Superleggera parts in 1971. Bianchi went from the semi flat fork crown to the aero fork crown in 1985 with the introduction of their Centinario 100th anniversary bike. Two sets of water bottle bosses and semi-sloping dropouts was the early 90s bikes I believe. 1981: - Tipo Corsa, Columbus Aelle tubing, Nuovo Record equipped - Super Leggera, Columbus SL & SP tubing, Super Record reduced, chrome head lugs - Super Corsa - Columbus SL & SP tubing, Super Record, chrome head lugs 1982: - Tipo Corsa, Columbus Aelle tubing, Nuovo Record equipped - Super Leggera, Columbus SL & SP tubing, Super Record reduced, no chrome head lugs - Super Corsa, Columbus SL & SP tubing, Super Record, no chrome head lugs 1983: - Tipo Corsa, Columbus Aelle tubing, Nuovo Record equipped - Super Leggera, Columbus SL & SP tubing, Super Record reduced, no chrome head lugs - no Super Corsa offered - Specialissima frame, no chrome head lugs, no model name on top tube, celeste paint 1984: - Tipo Corsa, Columbus Aelle tubing, Nuovo Record equipped - Super Leggera, Columbus SL & SP tubing, Super Record reduced, no chrome head lugs - no Super Corsa offered - Specialissima frame, no chrome head lugs, no model name on top tube, celeste paint 1985 intro aero fork crown: - Centenario 1986: - Super Leggera, Columbus SL & SP, Chorus Syncro, aero fork crown Here's the Bianchi catalog scans on Mark Bulgier's web site (linked from the links page on my www.velo-retro.com web site too). Below are my best estimates on the dates of the catalogs shown. Anyone have more accurate date info? Unfortunately the bike specification pages were not scanned for the catalogs on the site. <http://bulgier.net/p.../bike/Catalogs> '70s Bianchi Catalog <dir> bianchi1 1981 Bianchi Catalog <dir> bianchi81 1981 Bianchi Catalog <dir> bianchi3 1983 Bianchi Catalog <dir> bianchi4 1984 Bianchi Catalog <dir> bianchi2 1985 Bianchi Catalog <dir> bianchi6 1986 Bianchi Catalog <dir> bianchi5 Super Leggera '82 (chrome on head lugs): <http://bulgier.net/p...bianchi3/7.jpg> Super Corsa '82 bike (chrome on head lugs): <http://bulgier.net/p...bianchi3/8.jpg> Super Leggera '83 bike (no chrome on head lugs): <http://bulgier.net/p...bianchi4/8.jpg> Specialissima '83 frame set specs: <http://bulgier.net/p...ianchi4/9b.jpg> <http://bulgier.net/p...ianchi4/9c.jpg> Specialissima '84 frame set specs: http://bulgier.net/p.../bianchi2/9.jpg