135cc Zuera SRV Reed valve Thermal Group

Developed on the racing fields, the "Zuera" thermal group is also suitable for touring use, the exhaust and intake diagrams have been designed to have the right compromise between maximum torque and maximum power, allowing the engine to “Push” in any operating condition without supply gaps and failures. The central spark plug head with 8 studs guarantees maximum performance and prevents deformation of the sealing surfaces.
The new “Zuera” thermal group is exceptional in both daily and competitive use.

Applications: Vespa ET3 125, Vespa Primavera 125, Vespa Nuova 125, Ape 50 Transformation 125.