AVA Stem for Peugeot PX10 80mm / 25.4mm / 22mm Vintage 1960s Road Bike

The 25.4 mm inner diameter on this AVA stem is the first number to verify. That clamp interface dictates which handlebar it can accept, and the 22 mm quill diameter must match the fork steerer. These are not interchangeable conventions, and on a 1960s Peugeot PX10 the correct pairing matters.

Period-Correct Geometry

The 80 mm reach positions the handlebar closer to the steering axis. This measurement, combined with the 22 mm quill, defines the cockpit length without altering the frame geometry. The stem carries only the dimensions listed in the specifications; any surface wear or oxidation visible in the images forms part of the item’s condition.

Key specifications

• Stem length (in mm): 80
• Outer stem diameter (in mm): 22
• Inner stem diameter (in mm): 25.4

For a complete cockpit setup on a period Peugeot, compare this stem with the available Moustache handlebar 24.8 - 440 mm vintage steel bike bar, which requires a different clamp diameter. The stem’s 25.4 mm inner diameter is the decisive compatibility factor when selecting a handlebar.

If you are also working on the drivetrain, the Simplex vintage rear derailleur Peugeot 1960 can complete a period-consistent assembly. Both parts come from the same era of French road cycling equipment.