Maybe I've had too many cappuchinos, but I just bought a Colnago Profil CX on e-bay. It was advertised (by a bike shop) as an early 90's bike. As a result of investigations and opinions gathered from various e-sources, I believe it is more likely an 84-85, which is just fine by me. A source suggests that in 1980 the Nuovo Mexico model "started using crimped tubing at top and down tubes", and that Guiseppe Sarroni took victories with these frames. In 1982-83 the "Profil" was produced with "a main triangle with all crimped tubes". In 1984-85 the "Profil CX" was produced "same as the Profil but with a shifter boss on top of the downtube. I gather that Colnago was experimenting with tube shapes during this period. The "crimping" is a slight, lengthwise indent in the tube, no more that 3mm deep, and stopping about 5cm from the tube ends. This gives a slightly oval shape to the tube. The bike I bought has crimped top and down tubes, and a crimp along the inside of each of the chainstay tubes. The shifter is located on top of the downtube. It is equipped with Campy Super Record front and rear dr's (which were superceded by C-Record in 1985, I believe), a "Strada" crankset, and OMAS hubs. It has the usual pantographs and cut outs in the fork crown, BB, lower head tube chromed lug, and tops of the seat tubes. The frame is fully chromed beneath a beautiful wine red, which seems to glow due to the chrome underneath. I found a serial number on the drive side rear drop out (Campy) that overprints the "Campagnolo" lettering with "USA" on the top of the axle and "A257" below. The attached photo is from the seller. Any input to understand this bike is appreciated. I know its not unique, but the history is blurred.