Offset Cones for Engine Pin: When to Use Them on Your Lambretta

In the world of Lambretta maintenance and technical preparation, precise alignment of the engine to the frame is an often overlooked but fundamental aspect, not only to ensure stability and reliability, but also to allow the installation of high-performance components. In this context, the offset cones for the engine pin represent an effective solution to optimize the centering of the engine block, especially in the presence of oversized intake manifolds that, otherwise, could interfere with the frame.

What are offset cones?

Offset cones are mechanical components designed to replace the standard cones of the Lambretta engine pin. Their peculiarity lies in the hole off-center with respect to the geometric axis of the cone: this feature allows you to slightly modify the position of the engine block inside the frame, with a millimetric precision adjustment.

This ability to move is useful not only to correct any misalignments, but also to facilitate the installation of aftermarket components. Offset cones allow, for example, to install larger intake manifolds without touching the frame, thus avoiding cuts or structural modifications and preserving the integrity of the vehicle.

When and why to use them

The pair of offset engine pin cones is compatible with the Lambretta S1, S2, TV2, S3, TV3, Special, SX, DL and Serveta models. These cones are designed to move the engine block slightly lower and laterally from the original position, allowing for a better fit in tuned configurations.

They are particularly suitable when installing a thermal unit with a reed valve pack (such as TS1, Imola, Monza, RB…), where the space between the intake manifold and the frame may be insufficient. In these cases, the offset cones allow the intake manifold to be moved away from the frame, simplifying installation and improving assembly reliability.

Furthermore, the offset cones allow for the installation of larger intake manifolds without touching the frame, avoiding invasive structural modifications and maintaining the integrity of the vehicle.

Vantaggi tecnici dei coni disassati

• Consentono l’installazione di collettori di aspirazione maggiorati
  Offrono lo spazio necessario per montare carburatori di grande diametro senza dover intervenire sul telaio.

• Spostano il blocco motore verso il basso
  Fondamentali in configurazioni con gruppi termici lamellari (TS1, Imola, Monza, RB), dove l’ingombro del collettore può creare interferenze.

• Allontanano il collettore dal telaio
  Eliminano il rischio di contatti o vibrazioni tra collettore e telaio, migliorando affidabilità e durata dei componenti.

• Compatibili con tutti i principali modelli Lambretta
  Utilizzabili su S1, S2, TV2, S3, TV3, Special, SX, DL e Serveta senza modifiche strutturali.

• Installazione semplice e reversibile
  Si montano al posto dei coni originali, senza richiedere lavorazioni aggiuntive.

Conclusion

Offset cones for Lambretta engine pin are a technical component often overlooked, but extremely useful for those who want to get the maximum in terms of mechanical precision and driving performance. Whether it is an accurate restoration or a racing project, this type of adjustment can make the difference.

To learn more or purchase the kit, visit the dedicated product sheet.

Contacts for information

Do you have doubts about using offset cones or want to understand if they are suitable for your Lambretta configuration? Our team is available to support you in choosing and installing the most suitable components for your project.

Contact us:

• Email: info@stflambretta.com

• Phone / WhatsApp: +39 3408684556

We respond quickly and offer personalized technical support for every need, from original restoration to racing tuning.