CLUZEL touring bicycle frame 1950 650B 3335g 56×57 119.3mm

A rare specimen of mid-century French bicycle manufacturing, this Cluzel 1950 steel chassis represents a high-grade foundation for retro touring bike rebuilds. Constructed for 650 wheels, it showcases the classic lugs and integrated design elements typical of handcrafted French artisan workshops from this golden era. Every line tells a story of post-war mechanical utility and craftsmanship.

Artisanal Geometry & Vintage Engineering

Engineered for endurance and steady handling, this frame features a 56cm seat tube (measured from bottom bracket center to the top of the tube) paired with a 57cm top tube (measured center to center). To maintain historical accuracy, the frame utilizes traditional French threads on both the bottom bracket shell and the fork column. High-precision restoration enthusiasts will find this frame a highly compatible candidate for period-correct component matching.

For restorers aiming to complete a classic cockpit assembly, we suggest pairing this chassis with a period-correct Vintage Steel Moustache Handlebars 25-545mm R847 or reviewing alternative layouts such as our Pithioud Touring Bike Frame 1960 for different size requirements.

Technical Specifications

• Seat post (in mm): 25.6
• Size: 56
• Thread (bottom bracket): 35x100 "French"
• Thread (fork): 25X100

Condition Report

As a genuine pre-owned item from 1950, this frame shows cosmetic signs of age and storage, including minor paint chips and superficial oxidation. To get an exact understanding of its visual condition, please refer to the extensive gallery. The photos are part of the description; they illustrate every detail, weld line, and patina accent on this piece.