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The ITM 800 Open holds a real place in the history of Italian stem manufacturing. Built by Italmanubri (ITM) in Italy during the era of steel road frames and threaded 1\" steerer tubes, the 800 Open earned its reputation through a simple, functional idea: an open-face, hinged clamp that lets the bar seat into the stem without dragging it past bar tape, grips, or brake levers. That \"Open\" in the name isn\'t marketing fluff — it\'s the mechanism itself, and you can see the split, hinged clamp face in the photos.
This example is NOS — new old stock. It has never been installed, never mounted to a bike, and comes in its original ITM \"Champ\'s Bars & Stems\" box (Made in Italy). The quill is stamped directly with its spec numbers (76° angle, 120mm extension) and, in ITM\'s own words along the quill: \"Particolarmente adatto per l\'attività professionale\" — Italian for \"particularly suited for professional use.\" The quill also carries the standard minimum-insertion mark (\"STOP\" with hash lines) so you can set your height with confidence.
SPECIFICATIONS
Brand: ITM (Italmanubri), Made in Italy
Model: 800 Open
Type: Quill stem (threaded steerer, not threadless/ahead)
Quill diameter: 22.2mm (7/8\"), fits standard 1\" O.D. threaded steerer tubes
Bar clamp diameter: 25.4mm
Extension (center to center): 120mm
Angle: 76°
Color/finish: Black
Material: Forged aluminum alloy body
Clamp style: ITM\'s patented open-face, hinged clamp
Condition: New Old Stock (NOS) — unused, unmounted, in original box
CONDITION
This stem has never been ridden. It\'s true NOS: unused and stored in its original box. As with any part that\'s been sitting in inventory for decades, there can be very light shelf wear to the box or finish — what you see in the photos is exactly what you\'re getting, so please look them over closely. I\'m glad to answer any question about condition, fitment, or anything else not fully covered by the photos before you buy — just ask.
A stem like this is a good fit for a period-correct restoration or repaint of a steel road frame from the quill-stem era, or for anyone building up a classic Italian racer who wants the original hardware to match.