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Mercier Reynolds 531 steel bicycle frame drive side view
  • Mercier Reynolds 531 steel bicycle frame drive side view
  • Lug detailing on Mercier vintage bicycle frame
  • Bottom bracket shell with French thread specifications
  • Rear dropouts spacing 122mm on Mercier frame
  • Seat cluster showing Mercier seatpost entry 26.6mm
  • Fork crown and head tube lugs on vintage Mercier
  • Reynolds 531 tubing decal on Mercier steel frame
  • Top tube measurement on Mercier frame
  • Seat tube measurement 61cm center to top
  • Front fork blades of Mercier Reynolds 531
  • Rear triangle and chainstays close-up
  • Mercier head tube badge and lug work
  • Brake bridge detail on Mercier steel road frame
  • Down tube Mercier logo profile view
  • Bottom bracket thread inspection French 35x100
  • Fork steerer tube threads 25X100
  • Top view of Mercier top tube
  • Non-drive side rear dropout detail
  • Bottom bracket shell underside markings
  • Rear stays alignment check Mercier frame
  • Seatpost clamp slot close-up 26.6mm
  • Fork dropouts close-up view
  • Lug profiling at top tube joint
  • Down tube shifter boss details
  • Rear brake mounting point vintage Mercier
  • Bottom bracket face detailing
  • Rear triangle alignment drive side
  • Headset cup interface upper
  • Headset cup interface lower
  • Complete frame assembly weight verification
  • Mercier fork weight verification
  • Frame weight without fork verification

MERCIER Vintage Bicycle Frame Reynolds 531 Tubing 2970g 61×59cm 122mm

MERCIER
This second-hand Mercier bike frame is constructed with legendary Reynolds 531 tubing for exceptional responsiveness. The original photographs form part of the description. It features a seat tube of 61 cm (measured from the bottom bracket center to the top of the tube) and a 59 cm top tube.
€299.00
VAT included
Quantity
Last items in stock
1 Item

Description

This second-hand Mercier frame represents classic French bicycle engineering, utilizing high-performance Reynolds 531 steel tubing. Built for demanding vintage projects, this classic chassis offers the ideal balance of compliance, stiffness, and long-distance comfort.

Vintage Engineering & French Craftsmanship

Constructed for collectors and restorers, this Mercier frame showcases traditional lugged construction designed to withstand miles of open-road riding. The lightweight nature of the Reynolds 531 alloy provides a lively ride feel that modern materials struggle to replicate. Note that the original photos form part of the description, allowing you to inspect the vintage patina and physical characteristics closely.

For a complete period-correct build, you can couple this chassis with a high-grade vintage cockpit using this Vintage Aluminium Handlebar qGuid, or explore similar setups like this slightly smaller Mercier Reynolds 531 Frame 57cm.

Technical Specifications

  • Seat post (in mm): 26.6
  • Size: 61
  • Thread (bottom bracket): 35x100 "French"
  • Thread (fork): 25X100

FAQ

What is the seatpost compatibility for this Mercier frame?

This Mercier frame requires a seatpost with a 26.6 mm diameter.

What are the bottom bracket thread standards of this frame?

The bottom bracket shell uses standard French threading measuring 35x100 mm.

Are the dimensions center-to-center?

The seat tube measurement of 61 cm is from the bottom bracket center to the top of the tube, while the top tube is 59 cm center-to-center.

What fork thread sizing is present on this frame?

The fork features a traditional French thread standard of 25X100.

Product Details
1 Item
Used

Data sheet

Seat post (in mm)
26.6
Size
61
Thread (bottom bracket)
35x100 "French"
Thread (fork)
25X100
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Grade
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