This second-hand Peugeot 650A junior bicycle frame represents a rare architectural pattern in classic French bicycle manufacturing. Engineered specifically for smaller wheel geometries, this vintage steel chassis offers collectors and restorers an authentic base for a period-correct, scaled-down project. Measuring 52 cm from the bottom bracket center to the top of the seat tube, and 52.5 cm from center to center along the top tube, this frame preserves the classic ride dynamics of mid-century European machinery. The photographs form an integral part of the description, capturing the exact cosmetic state, tube alignments, and paint condition of this vintage unit.
Technical Specifications & Architectural Standard
Built with traditional lugged construction, the frame exhibits a rear dropout spacing of 120.6 mm, making it fully compatible with historical French hubs and classic multi-speed freewheels. The bottom bracket shell is machined to standard French/BSFF threading, requiring period-correct French-threaded cups for assembly. To ensure perfect mechanical compatibility during your restoration, pair this steel frame with vintage accessories from our catalog, such as these classic touring bike toolboxes designed for historic French builds. If your restoration project requires a larger template or high-performance tubing, consider evaluating the Peugeot PY10 Full Reynolds 531 frame as a high-end alternative.
Caractéristiques techniques
- Size: 52
- Total Weight: 3355 g (including fork where pictured)
- Seat Tube (a): 52 cm (measured from bottom bracket center to top of seat tube)
- Top Tube (b): 52.5 cm (measured center to center)
- Rear Dropout Spacing: 120.6 mm
- Threading Standard: French / BSFF
Restoration Integrity & Sizing Notes
Because the photographs form an integral part of the description, we advise meticulous inspection of all listed images to evaluate the natural paint patina, decals, and surface characteristics. No structural compromises or cracks are present on this frame. Minor paint chips and superficial oxidation spots typical of age and dry storage are visible on the steel tubes, confirming its genuine vintage history. Perfect for vintage rallies, custom junior projects, or specialized displays.
FAQ
What wheel size is compatible with this Peugeot junior frame?
This frame is specifically designed for 650A (ISO 590) wheels, which are traditional French junior and utility bike sizes.
What type of bottom bracket thread does this frame use?
It features standard French/BSFF threading. You must use vintage French-threaded cups and spindle assemblies.
Is the original fork included with the 3355g weight?
Yes, the total weight of 3355 grams includes the original steel fork as shown in the product photos.
Are there any structural defects or cracks in the frame?
No. The frame has been inspected and is structurally sound with no cracks. Minor paint blemishes are shown in the photographs.
