The seats of the Primavera/Sprint 125/150cc models can be interchanged, but do not fit on the 50cc models due to the electric seat release.
Conversely, the seats on the 50cc models do not fit on the 125/150cc models due to the manual seat release (using a lock and key), but can be exchanged between the Primavera 50cc and Sprint 50cc models.
- for automatic seat release