Columbus SLX tubing, Cinelli Bar and stem, Campagnolo Super Record seatpost, bottom bracket, crankset, brakes, front derailleur. Rear derailleur is Shimano but a Campy is available if you prefer. Seat tube is 50cm c-c, toptube is 52cm c-c. Designed by Ugo DeRosa built in the Merckx shop.