This authentic Mercier steel frameset represents the pinnacle of classic bicycle manufacturing, direct from the historic workshops of Saint-Étienne. Constructed with a full set of legendary Reynolds 531 double-butted steel tubes, this chassis offers the exceptional tensile strength, structural damping, and responsive road feel that vintage cycling collectors seek. Retaining its original alignment, this second-hand frame is a prime candidate for a period-correct road build or a custom vintage restoration.
Technical Integrity & Structural Properties
Designed for demanding historical builds, this high-performance chassis weighs in at exactly 2915g, a total that includes both the main triangle and the matching Reynolds steel fork. The rear dropout spacing is set to 119.3mm, making it fully compatible with classic 5-speed threaded freewheel hubs. It features traditional French threading (BFFF) on the bottom bracket shell and exquisite lugwork typical of vintage French frame builders. Minor cosmetic blemishes and surface storage marks are visible; please note that the high-resolution photos are part of the description to help you evaluate the exact patina.
For custom retro setups requiring different sizing, you may also consider examining our larger Mercier Service des Courses Reynolds 531 Frame or check the dimensions on the Mercier Reynolds 531 Frame (61cm) to match your precise physical clearance needs.
Technical Specifications
- Tubing material: Reynolds 531 double-butted manganese-molybdenum steel
- Weight: 2915g (frame and fork combined)
- Seat tube height: 57 cm (center-to-top)
- Top tube length: 57.5 cm (center-to-center)
- Rear dropout spacing: 119.3 mm
- Thread standard: French (BFFF)
- Size: 57
FAQ
What are the exact dimensions of this Mercier frameset?
The seat tube height is 57 cm (measured from the bottom bracket center to the top of the seat tube) and the top tube is 57.5 cm (measured center-to-center).
Which bottom bracket threading standard is used?
This vintage Mercier frame utilizes traditional French threading (BFFF), standard for period-correct classic French bicycle builds.
What rear hub width is required for this frame?
The rear dropout spacing measures 119.3 mm, making it ideal for classic 5-speed vintage freewheels and hubs.
Are there any structural defects or cracks in the metal?
There are no major structural defects like cracks, deep rust, or bends. Please consult the photographs, which are part of the description, to view the cosmetic patina.
