restored Chesini X-Uno frame in 57 cm (c-t) / 55 cm (c-c), with Columbus SLPX tubing cosme Shimano 105 #BL-1051 SLR brake

Shimano 105 #BL-1051 SLR brake levers

According to the previous owner: A bikeshop replaced the upper part of the headset with Stronglight headset parts a few years ago

Brake levers are non-aero type / Bremshebel sind vom Typ nicht Aero

Sattelrohr / seat tube: 55

restored Chesini X-Uno frame in 57 cm (c-t) / 55 cm (c-c), with Columbus SLPX tubing cosme Shimano 105 #BL-1051 SLR brakeSeat tube Sattelrohr: 57. 0 cm (center top Mitte Oberkante) Seat tube Sattelrohr: 55. 0 cm (center center Mitte Mitte) Top tube Oberrohr: 55. 0 cm (center center Mitte Mitte) Head tube Steuerrohr: 14. 3 cm Fork shaft Gabelschaft: 16. 6 cm (1") Front spacing Einbaubreit vorne: 100 mm Rear spacing Einbaubriete hinten: 126 mm Seat post Sattelsttze: 27. 2 mm Headset Steuersatz: BSA ISO ITA (25. 4 mm x 24 tpi) Crwon race Gabelkonus: 26. 4 mm Bottom bracket