Cadre de vélo de course vintage

The frame of a vintage racing bike is the central element of the bicycle, responsible for its structure, geometry and style. Here are the main features and function of a vintage racing bike frame:

1. Material:

Vintage racing bike frames are often made from chromoly steel. Chromoly steel is valued for its lightness, strength and durability, while providing a certain level of flexibility for a more comfortable ride.

2. Specific geometry:

Vintage racing bike frames have geometry designed to promote an aerodynamic riding position. This often results in a relatively long top tube, a rearward sloping seat tube, and specific head and seat tube angles.

3. Horizontal tube and oblique tube:

The top tube connects the head tube to the bottom bracket socket, while the down tube connects the head tube to the chainstay. These tubes contribute to the rigidity of the frame and its stability.

4. Frame legs:

The frame dropouts are the parts where the wheels are attached. On vintage racing bikes, these dropouts may be horizontal, allowing fine adjustment of chain tension.

5. Welded fittings:

Vintage frames may have welded fittings rather than being made in one piece. The welds are often well done, adding to both the strength and aesthetics of the bike.

6. External cable mounts:

Vintage racing bikes often have external mounts for brake and shift cables. This gives the bike a more classic look and makes maintenance easier.

7. Distinctive Painting:

Vintage racing bike frames are often paired with bright paintwork and distinctive graphics, reinforcing the retro and aesthetic character of these bikes.

These combined features give the vintage racing bike frame its distinctive look while providing the agile, responsive ride characteristic of bikes designed for performance.