This mid-1970s lightweight steel frameset represents a solid platform for vintage workshop builds. Constructed with three main tubes in Reynolds 531 alloy, this chassis balances high tensile strength with excellent vibration dampening. Measuring 56 cm (seat tube, center-to-top) by 56.5 cm (top tube, center-to-center), it features a rear dropout spacing of 122mm, making it historically compatible with vintage 5-speed or 6-speed hubs.
Technical Specifications & Standards
Designed to French engineering specifications of its era, the bottom bracket shell utilizes a 35x100 mm Swiss thread standard (left-hand thread on the drive side), while the fork steerer tube is threaded to 25x100 metric standards. The total weight of the frameset including fork is 2925 grams.
Detailed Specifications
- Size: 56
- Thread (bottom bracket): 35x100 "Swiss"
- Thread (fork): 25X100
- Weight: 2925g
- Seat tube: 56 cm (center-to-top)
- Top tube: 56.5 cm (center-to-center)
- Rear spacing: 122mm
Restoration Potential & Component Matching
The original paintwork and decals exhibit patina and superficial weathering, requiring a clean or complete refinishing depending on your project goals. For a period-correct drivetrain assembly, pair this frame with a classic Mavic 500 RD Vintage Bicycle Rear Hub or complete your wheels using durable Mavic G40 Clincher Rims. The structural integrity remains sound, offering a reliable backbone for classic touring bikes or vintage club-racer configurations.
FAQ
What is the bottom bracket threading on this Peugeot PS10 frame?
This frame features 35x100 Swiss bottom bracket threading, which is distinct from French thread as the drive-side cup uses a left-hand (reverse) thread.
Are there any structural cracks or bends on this frame?
There are no structural cracks, deep dents, or alignment issues. The frame is straight. The paintwork exhibits wear and requires cosmetic restoration.
What is the rear dropout spacing of this frame?
The rear dropout spacing measures 122mm, which is standard for classic 5-speed and 6-speed vintage rear wheels.
