Mercier Full Reynolds 531 steel frame set 57x57 cm side view
  • Mercier Full Reynolds 531 steel frame set 57x57 cm side view
  • Head tube and fork lugs details on vintage Mercier road frame
  • Seat cluster showing Reynolds 531 tubing decal on Mercier frame
  • Bottom bracket shell with French metric threads 35x100
  • Rear dropouts spacing measurement on Mercier steel frame
  • Front fork crown and 25x100 mm steering column details
  • Top tube decal detail on Mercier vintage bicycle frame
  • Full view of Mercier fork constructed with Reynolds 531 steel
  • Down tube lug work on French vintage road frame Mercier
  • Seat tube clamp area and seatstay attachments detail
  • Under bottom bracket view with cable guides Mercier
  • Rear triangle chainstays and brake bridge on steel frame
  • Front dropout spacing measurement 99.4 mm on Mercier fork
  • Seat tube length measurement center-to-top 57 cm
  • Top tube length measurement center-to-center 57 cm
  • Fork steerer tube threads close-up 25x100 French size
  • Rear dropout alignment closeup on Mercier Reynolds frame
  • Mercier classic decals on down tube with paint patina
  • Weight scale verification displaying 2345g for frame and fork
  • Internal view of seat tube and seatpost insertion area
  • Complete profile view of Mercier Reynolds 531 vintage frame

Vintage MERCIER frameset, full Reynolds 531 tubing, 57×57cm, 121mm spacing, 2865g

MERCIER
This genuine Mercier steel frame features premium Full Reynolds 531 tubing for your classic bicycle build. Measuring 57x57 cm and weighing 2345g, it utilizes traditional metric threading. The photographs are an integral part of the description, capturing the exact condition of this pre-owned frame.
€299.00
VAT included
Quantity
Last items in stock
1 Item

Description

Premium French Engineering: Vintage Mercier Reynolds 531

For purists of the golden era of cycling, this authentic Mercier road frame offers a superb foundation for a period-correct build. Constructed with iconic Full Reynolds 531 steel tubes, it delivers the legendary ride quality, vertical compliance, and responsiveness that defined professional racing and high-end touring machines of the mid-to-late 20th century. Weighing in at 2345g (including the fork), this chassis represents the pinnacle of classic lightweight frame building.

Technical Specifications & Sizing Details

This chassis conforms to vintage French dimensions and standards, demanding matching components. To complete your cockpit setup with period-correct parts, we recommend sourcing a compatible vintage steel handlebar. Sizing and technical specifics are detailed below:

Technical Characteristics

  • Matter: Steel
  • Size: 57 cm (Seat tube: 57 cm center-to-top of seat tube | Top tube: 57 cm center-to-center)
  • Thread (bottom bracket): 35x100 "French" metric
  • Thread (fork): 25X100
  • Spacing: Front 99.4 mm / Rear 126.6 mm
  • Weight: 2345 g
  • Numéro de pièce fabricant: 0000
  • Pays d'origine: FRANCE

Build Integrity & Condition Notes

As a pre-owned vintage item, this frame shows minor signs of age and storage, such as small paint chips or superficial cosmetic wear, which are normal for its era. There are no major structural defects like cracks, deep rust, or alignment issues unless highlighted. The photographs are an integral part of this description, showing the exact cosmetic state, lug work, and decal preservation of the actual frame you will receive.

Whether you are building a dedicated classic road machine or looking for the perfect foundation for a high-end vintage project, this lightweight steel chassis is ready to be rebuilt. You can pair it with our available front headlight bracket if you are planning a classic vintage touring bike or utility build.


FAQ

What bottom bracket thread standard does this Mercier frame use?

This frame features French metric bottom bracket threading measuring 35x100 mm.

What is the exact frame size and weight?

The frame size is 57 cm (57 cm seat tube center-to-top, and 57 cm top tube center-to-center). The combined weight of the frame and fork is 2345 grams.

Are there any structural cracks or bends on this frame?

No. The frame is structurally sound with no cracks or major structural defects. Small cosmetic storage wear and micro-scratches may be present, which you can evaluate in the product images.

Product Details
1 Item

Data sheet

Country of origin
FRANCE
Material
Steel
Size
57
Thread (bottom bracket)
35x100 "French"
Thread (fork)
25X100
Manufacturer part number
0000
Comments (0)
Grade
No customer reviews for the moment.
16 other products in the same category:
Belledonne Vitus 788 steel bicycle frame in profile

Brand: BELLEDONNE

BELLEDONNE VITUS 788 Vintage Bicycle Frame 56×55.5cm 122.4mm French Thread 2900g D5

(0)
This secondhand Belledonne Vitus 788 frameset (2900g, 56x55.5cm) features classic French threading and lightweight tubing. Essential details: the photos form part of the description. Ideal for custom retro road or touring bike projects.
€49.00
More BELLEDONNE VITUS 788 Vintage Bicycle Frame 56×55.5cm 122.4mm French Thread 2900g D5
Last items in stock
Reynolds vintage bike frame 55.5x56cm 2950g front triangle closeup

Bespoke steel bicycle frame 2950g 55.5x56cm 122mm spacing Reynolds tubing

(0)
This 2950g hand-built Reynolds steel vintage bike frame features a 55.5x56cm profile, French-threaded bottom bracket (35x100), and classic 25x100 fork threading. As a pre-owned component, please note that the photos form part of the description so you can inspect its exact cosmetic condition.
€60.00
More Bespoke steel bicycle frame 2950g 55.5x56cm 122mm spacing Reynolds tubing
Last items in stock
Peugeot PX10/PY10 Reynolds 531 Frame 60cm

Brand: PEUGEOT

PEUGEOT DOLOMITE COLUMBUS SLX steel road frame 2470g 54x54cm 126mm spacing 1.37x24tpi 25.4-26.4

(0)
Peugeot Dolomite vintage frame in high-quality Columbus SLX tubing. Size 54x54 cm, lightweight and stiff, perfect for restoring a classic road bike. Rear spacing 126 mm, French threading. Ready for your next project.
€499.00
More PEUGEOT DOLOMITE COLUMBUS SLX steel road frame 2470g 54x54cm 126mm spacing 1.37x24tpi 25.4-26.4
Last items in stock
Jacques Busset Vitus 980 handbuilt steel road frame profile view

Brand: JACQUES BUSSET

JACQUES BUSSET Custom Handbuilt Steel Frame 52x53cm VITUS 980 Fillet Brazed 2230g

(0)
This handbuilt Jacques Busset road frame is constructed from ultra-lightweight Vitus 980 steel alloy, tipping the scales at just 2230 g. Note that the photographs form an integral part of this product description, showcasing the exact cosmetic state of this high-end vintage piece.
€375.00
More JACQUES BUSSET Custom Handbuilt Steel Frame 52x53cm VITUS 980 Fillet Brazed 2230g
Last items in stock
Peugeot PX18 M vintage steel bicycle frame 50cm front lug close-up view

Brand: PEUGEOT

PEUGEOT PX18 vintage frame, 50cm, French/Swiss threads, 124mm rear spacing - 3630g

(0)
This vintage Peugeot PX18 M steel frame is a classic foundation for retro urban builds and classic touring bike projects. Highly authentic, this used French frame shows minor cosmetic signs of use from storage, with detailed photos serving as an integral part of the description.
€75.00
More PEUGEOT PX18 vintage frame, 50cm, French/Swiss threads, 124mm rear spacing - 3630g
Last items in stock
New PEUGEOT 650B lady touring bike frame 53cm steel front view

Brand: PEUGEOT

Vintage PEUGEOT 650 Lady Touring Bike Frame 53cm Eroica BSFF

(0)
PEUGEOT 650B lady touring bike frame, steel, 53cm, French origin. Threading 35x1 Swiss BB, 25x1 fork, 5V freewheel. Photos are part of the description; minor cosmetic wear consistent with age and storage.
€59.00
More Vintage PEUGEOT 650 Lady Touring Bike Frame 53cm Eroica BSFF
Last items in stock
Motobecane C5 Columbus Special steel frame profile view

Brand: MOTOBECANE

MOTOBECANE C5 COLUMBUS SPECIAL Frameset 2495g 52*52cm 125.8mm BSC

(0)
This second-hand Motobecane C5 Columbus Special steel frame (52x52 cm, 2495g) is a premium foundation for vintage builds. Features Swiss bottom bracket threading and a 25X100 fork thread. Detailed photos constitute an integral part of the description.
€149.00
More MOTOBECANE C5 COLUMBUS SPECIAL Frameset 2495g 52*52cm 125.8mm BSC
Last items in stock
Superator vintage road bike frame front 3/4 view

Brand: SUPERATOR

SUPERATOR vintage bicycle frame 58x57cm 3265g 128mm rear spacing BFFF

(0)
This second-hand Superator vintage road bike frame weighs 3265g and features a 58x57cm geometry. Please note that the detailed photos are part of the description, illustrating the exact cosmetic condition and authentic patina of this retro steel chassis.
€14.99
More SUPERATOR vintage bicycle frame 58x57cm 3265g 128mm rear spacing BFFF
Last items in stock
Peugeot PY10 vintage bicycle frame in blue Reynolds 531 steel

Brand: PEUGEOT

PEUGEOT PY10 Frameset FULL REYNOLDS 531 5/10 54x55cm 2185g 120mm spacing

(0)
This vintage Peugeot PY10 lightweight chassis is constructed from legendary full Reynolds 531 steel tubing. Measuring 54 cm (seat tube) by 55 cm (top tube), it weighs only 2185 g. The photos form part of the description.
€179.00
More PEUGEOT PY10 Frameset FULL REYNOLDS 531 5/10 54x55cm 2185g 120mm spacing
Last items in stock
Peugeot PX10 PY10 Reynolds 531 steel frame 60cm side profile view

Brand: PEUGEOT

PEUGEOT PX10 PY10 bicycle frame, FULL REYNOLDS 531, 2985g, 60*58cm, 127.7mm BSP

(0)
This genuine PEUGEOT PX10 PY10 vintage bicycle frame is built from legendary lightweight Reynolds 531 double-butted steel tubing, weighing 2985g with a 60cm seat tube. Please note that the photos are part of the description. Ideal for premium retro builds.
€350.00
More PEUGEOT PX10 PY10 bicycle frame, FULL REYNOLDS 531, 2985g, 60*58cm, 127.7mm BSP
Last items in stock
LIBERIA 650B vintage ladies bicycle frame 52cm profile view

Brand: LIBERIA

LIBERIA 650B Vintage Step-Through Touring Bicycle Frame 52cm EROICA

(0)
This LIBERIA 650B vintage ladies bicycle frame is a classic steel chassis featuring a 52cm seat tube, perfect for rebuilding a traditional French town bicycle or a retro touring bike. A second-hand classic component in original vintage condition; the detailed photos form part of the description.
€39.00
More LIBERIA 650B Vintage Step-Through Touring Bicycle Frame 52cm EROICA
Last items in stock