The new Super Record ? 12×2 Speed rear derailleur can be defined as an innovatively shaped sculpture that uses 3D Embrace technology to better wrap the smaller cogs creating a double effect: the chain always maintains optimal traction thus increasing speed. , the power and precision of the gearshift, and the rear derailleur always maintains an optimal distance from the sprockets. The roller train has also been optimized to integrate with 11- to 34-tooth sprockets, allowing a single version to be retained for all sprocket cassettes offered. The upper body of the new Super Record ? 12X2 Speed rear derailleur has been made of technopolymer reinforced with carbon fiber to contribute to the strength and lightness of the component, while the titanium bolts guarantee not only a weight saving, but s ‘harmonizes even more with the technical and aesthetic aspect of the component.
The + product:
- Optimized return spring
- In the event of roughness of the road, the spring present between the upper body and the articulation absorbs the vibrations and always guarantees the optimal support of the chain on the sprockets.
- 12 tooth roller train rollers
- Perfect for operation with pinion cassettes with very diverse toothing.
- Ensures constant chain tensioning action.
- Adjusting the initial position of the rear derailleur
- Allows optimum adaptation to each sprocket cassette (11-29, 11-32 and 11-34).
- Optimization of the trajectory
- The movement of the rear derailleur allows the top roller of the crankset to always be at a close and constant distance from the sprocket being used.
- Removable articulation on the upper body
- Works perfectly with standard (with joint) and direct-mount (without joint) dropouts
Details:
- Weight: 181g
- Reference: RD20-SR124
MORE INFORMATION
How to adjust a rear derailleur.
How to change a rear derailleur.
| Cage | Medium |
| Groupe | Campagnolo Super Record 12S |
| Speed | 12 |





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