This second-hand French road frameset constructed from legendary Reynolds 531 steel tubes presents an authentic restoration opportunity for classic cycling enthusiasts. Weighing in at 3040g, this Peugeot PY10 frame offers a highly regarded mechanical baseline, though it requires specific workshop attention before final assembly. The photos are part of the description and reveal the exact cosmetic condition and technical points detailed below.
Critical Mechanical Note & Threading Status
Prior to planning your build, observe that the threading on the right-hand side of the bottom bracket shell is damaged. To resolve this, you must either rethread the shell or install a specialized threadless Mavic emergency bottom bracket. Please note that the cup shown in our detailed images is solely there to illustrate this technical issue and is not included with the frame shipment. If you are also working on compact builds, you may want to compare this layout with our smaller Peugeot PY10 Reynolds 531 53.5x54cm frame.
Frame Dimensions & Geometry
Measurements are taken precise center-to-center for horizontal alignment, and center-to-top for the vertical tube:
- Seat tube (a): 58.5 cm (measured from center of bottom bracket shell to the top of the seat lug)
- Top tube (b): 57 cm (measured center-to-center)
- Rear spacing: 125.4 mm
For restorers who also maintain vintage French touring bikes, proper component matching is critical; we recommend browsing our authentic Mafac brake levers to complete your cockpit setups.
Technical Specifications
- Seat post (in mm): 26.4
- Matter: Steel
- Size: 58
- Thread (bottom bracket): 35x100 " Swiss"
- Diamètre: 700C - 622mm
- Numéro de pièce fabricant: 0000
- Pays d'origine: FRANCE
FAQ
What is the exact issue with the bottom bracket thread?
The threading on the right side of the bottom bracket shell is damaged. It requires professional rethreading or the installation of a threadless Mavic-type bottom bracket.
Is the bottom bracket cup shown in the pictures included?
No, the cup shown in the photos is only there to illustrate the thread wear and is not included with the frame.
What seat post diameter fits this Peugeot PY10 frame?
This frame requires a 26.4 mm seat post, which is typical for French metric Reynolds 531 tubing of this era.
What is the bottom bracket thread standard for this frame?
The technical specifications indicate a Swiss thread specification of 35x100.
