409 - Rare “MITUTOYO NOBINOBI-GO” telescopic bicycle. Japan, c. 1975–1978

Rare “MITUTOYO NOBINOBI-GO” telescopic bicycle. Japan, c. 1975–1978 An exceptional and extremely rare collector’s bicycle with a retractable frame (known as “shinshuku-gata”), the “Nobinobi-gô” model (from the Japanese adjective meaning “extendable”), produced in an ultra-limited edition by Mitutoyo, the Japanese giant in metrology and precision measurement instruments. Designed following bicycle design experiments in the late 1960s and marketed in the mid-1970s at an astronomical price for the time of 160,000 yen (making it one of the most expensive bicycles of its era), this model was produced for only three years (1975–1978). Intended for an elite clientele and now regarded as a masterpiece of vintage engineering, a similar model is part of the official collection at the Bicycle Museum in Japan. Technical Specifications and Engineering: Unlike conventional hinged folding systems, the Nobinobi-gô features a fully telescoping tubular frame made of ultra-high-density industrial steel, designed to instantly adapt to all body types, from children to adults. - Mechanism: The main horizontal frame tube, the handlebar stem, and the seatpost slide concentrically. The handlebars fold down and the pedals retract for minimal bulk when folded. - Wheels: Original 12.5-inch wheels. - Dimensions: Total length of 125 cm when fully extended, retractable to 95 cm. - Weight: Approx. 16.3 kg. Condition: - Appearance: Shows signs of use but remains complete, with the exception of the plastic lever located under the handlebars. Features its original frame plate engraved with the former Mitutoyo brand emblem. Original blue striped paint; pitted chrome. An unusual masterpiece of mechanical engineering, this model (a rare and eccentric bicycle) represents a unique opportunity for collectors of Showa-era bicycles and enthusiasts of high-precision Japanese industrial design.