The following components are included in this set:
Silentblock engine rocker bar Ø=61.7 x 18 x 40mm -PIAGGIO- Vespa GT 250 (ZAPM45102), Vespa GT L 125 (ZAPM31100, ZAPM31101), Vespa GT L 200 (ZAPM31200), Vespa GTS 125 (ZAPM31300), Vespa GTS 250 (ZAPM45100, ZAPM45101), Vespa GTS 300 (ZAPM45200, ZAPM45202, Z
Silentblock engine rocker bar Ø=61.7 x 18 x 40mm -PIAGGIO- Vespa GT 250 (ZAPM45102), Vespa GT L 125 (ZAPM31100, ZAPM31101), Vespa GT L 200 (ZAPM31200), Vespa GTS 125 (ZAPM31300), Vespa GTS 250 (ZAPM45100, ZAPM45101), Vespa GTS 300 (ZAPM45200, ZAPM45202, Z
Plastic bush engine swing arm (bushing in silent rubber) -PIAGGIO- Vespa GT 250 (ZAPM45102), Vespa GT L 125 (ZAPM31100, ZAPM31101), Vespa GT L 200 (ZAPM31200), Vespa GTS 125 (ZAPM31300), Vespa GTS 250 (ZAPM45100, ZAPM45101), Vespa GTS 300 (ZAPM45200, ZAPM
2xPlastic bush engine swing arm (bushing in silent rubber) -PIAGGIO- Vespa GT 250 (ZAPM45102), Vespa GT L 125 (ZAPM31100, ZAPM31101), Vespa GT L 200 (ZAPM31200), Vespa GTS 125 (ZAPM31300), Vespa GTS 250 (ZAPM45100, ZAPM45101), Vespa GTS 300 (ZAPM45200, ZAPM
Needle roller bearing -HK 1514- (15x21x14mm)
4xNeedle roller bearing -HK 1514- (15x21x14mm)
99,00 € *
The engine of the Piaggio automatic scooters from 125ccm is not directly bolted to the frame.
Between frame and engine is a so-called parallelogram.

The swing arm parallelogram provides for the vertical swing compensation of the almost horizontally installed engine. If the engine would be screwed directly into the frame, the engine vibrations of the 1st and 2nd order would be hard to bear (mirror trembling, tingling, numb feeling in the hands etc.). In addition, it decouples the frame from shocks caused by uneven ground.
The swing arm parallelogram is therefore indispensable, but often causes some displeasure when riding in a sporty manner. There are two things that must be distinguished:

CHECK WARNING
The engine swingarm has six bearing points and can therefore cause a lot of lateral play of the engine under normal wear. This gives the rear wheel its own steering radius, which makes the handling very unstable and imprecise.
If the engine can be moved significantly transverse to the longitudinal axis of the vehicle, the swing arm should be revised. This is a main focus of the inspector at the next general inspection.
We offer a complete revision kit for this.


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Autohaus T. from Zeiselmauer 07/21/2025
Christian H. from Wedemark 08/25/2025
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