Casati Laser 75th Anniversary Frameset

The Casati Laser 75th Anniversary Frameset marks seventy-five years of Casati building bicycles by hand in Monza, Italy — a milestone earned through three generations of a single family working in the same small workshop on Via Prampolini, in a city synonymous with precision and the highest standards of Italian manufacturing. Cicli Casati was founded in 1920, and by the time this anniversary edition was produced, Luca and Massimo Casati were the ones turning out frames in the same space where the shop began. This isn't a marketing exercise wearing heritage as decoration. It's a working road bicycle built to the highest material standard of its era, finished with jubilee graphics that communicate exactly what it is: a frame produced by a family that has earned the right to celebrate.

The frame is built from Columbus Genius steel — one of the most sophisticated cycling-specific steel alloys of this period and a significant advance over the SL and SP tubesets that preceded it. Genius uses Nivacrom steel, a chromium-molybdenum-nickel alloy, drawn to walls as thin as 0.5mm through Columbus's differential shape butting process. Genius was the first cycling tubeset designed specifically for TIG welding rather than lugged construction, with shorter butted ends that work with the weld zone rather than spanning across it. What this means in practice is a tube that achieves among the highest tensile strength of any frame-grade steel of its era in a wall section thin enough to keep the frame genuinely light and responsive. In Casati's hands — where the quality of the alignment, mitering, and finish work matters as much as the raw material — Genius produces a frame that is precise under acceleration, holds its line at speed, and carries the characteristic steel quality of road vibration damping that makes a long day on rough pavement feel different from what aluminum or early carbon could offer.

The Laser is one of Casati's enduring frame names — a model that has run through multiple eras of the Monza shop's lineup and earned a reputation for proportional, race-oriented geometry executed without compromise. The 56cm version here runs a 575mm top tube, 403mm chainstay, and a 73.3° seat tube angle that suits a broad range of rider positions when dialed in with the appropriate stem and saddle setback. The 175mm head tube offers enough stack for a road-performance position without requiring an extreme drop from saddle to bar. The geometry is deliberately conventional — this is an anniversary edition that honors the Laser's lineage rather than reinterpreting it. What distinguishes a Casati from a factory-produced frame at a similar specification isn't the numbers on paper but the execution in person: the tube mitering, the dropout alignment, and the overall quality of a frame made one at a time by people who have been doing this specific work for over a century.

The build specification reflects traditional Italian practice throughout. The bottom bracket shell is 70mm Italian-threaded, the front derailleur mount is braze-on, the seatpost diameter is 27.2mm, and the headset is 1" threadless — a choice that places this frame firmly in the component standards of Italian road cycling's classic era. Building it correctly means sourcing a 1" threadless stem and headset, which narrows the new-production options but opens a broad range of period-correct parts from Campagnolo, Shimano, and the other major groupset manufacturers of the era. For a rider assembling a 1990s Campagnolo Record or Chorus kit, or a Shimano Dura-Ace or 105 period build, this frame is a natural foundation. For a collector's piece or a show build that tells a specific story about where Italian road cycling came from, every spec choice is purposeful and consistent from dropout to headtube.

The yellow and blue anniversary finish is applied over the Columbus Genius tubes with the care you'd expect from a workshop that has been painting frames in Monza since 1920. The jubilee graphics are restrained — legible enough to mark the occasion without overrunning the frame's lines. This is a single-size offering in 56cm, available in one colorway, with finite stock. For the rider it fits and for whom a hand-built Italian steel frame with this provenance represents what a bicycle should be, the Casati Laser 75th Anniversary is a rare find at a price well below what comparable Italian hand-built steel typically commands.